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53388502050 = 23521327378719
BaseRepresentation
bin110001101110001100…
…111110010000100010
312002210201212220120210
4301232030332100202
51333314424031200
640305404514550
73600005531322
oct615614762042
9162721786523
1053388502050
1120707465874
12a41b84ba56
13505aa9b220
142826787282
1515c70ca650
hexc6e33e422

53388502050 has 48 divisors (see below), whose sum is σ = 142588373760. Its totient is φ = 13141784640.

The previous prime is 53388502049. The next prime is 53388502051. The reversal of 53388502050 is 5020588335.

It is an interprime number because it is at equal distance from previous prime (53388502049) and next prime (53388502051).

It is a super-2 number, since 2×533885020502 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (53388502051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13687410 + ... + 13691309.

It is an arithmetic number, because the mean of its divisors is an integer number (2970591120).

Almost surely, 253388502050 is an apocalyptic number.

53388502050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53388502050 is an abundant number, since it is smaller than the sum of its proper divisors (89199871710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53388502050 is a wasteful number, since it uses less digits than its factorization.

53388502050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27378747 (or 27378742 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 53388502050 in words is "fifty-three billion, three hundred eighty-eight million, five hundred two thousand, fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 27378719 54757438 82136157 136893595 164272314 273787190 355923347 410680785 684467975 711846694 821361570 1067770041 1368935950 1779616735 2053403925 2135540082 3559233470 4106807850 5338850205 8898083675 10677700410 17796167350 26694251025 53388502050