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53354522457 = 3217398987421
BaseRepresentation
bin110001101100001011…
…010110011101011001
312002201100221120100100
4301230023112131121
51333232224204312
640302152330013
73566113646415
oct615413263531
9162640846310
1053354522457
112069a267465
12a4103a3909
135053a31a62
14282205dd45
1515c41175dc
hexc6c2d6759

53354522457 has 24 divisors (see below), whose sum is σ = 81622424520. Its totient is φ = 33468572160.

The previous prime is 53354522413. The next prime is 53354522471. The reversal of 53354522457 is 75422545335.

53354522457 is a `hidden beast` number, since 5 + 3 + 354 + 52 + 245 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20179907136 + 33174615321 = 142056^2 + 182139^2 .

It is not a de Polignac number, because 53354522457 - 232 = 49059555161 is a prime.

It is a super-2 number, since 2×533545224572 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53354522057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 566607 + ... + 654027.

It is an arithmetic number, because the mean of its divisors is an integer number (3400934355).

Almost surely, 253354522457 is an apocalyptic number.

It is an amenable number.

53354522457 is a deficient number, since it is larger than the sum of its proper divisors (28267902063).

53354522457 is a wasteful number, since it uses less digits than its factorization.

53354522457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91433 (or 91430 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 45.

The spelling of 53354522457 in words is "fifty-three billion, three hundred fifty-four million, five hundred twenty-two thousand, four hundred fifty-seven".

Divisors: 1 3 9 17 51 153 3989 11967 35901 67813 87421 203439 262263 610317 786789 1486157 4458471 13375413 348722369 1046167107 3138501321 5928280273 17784840819 53354522457