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53005050053 = 75611701023
BaseRepresentation
bin110001010111010110…
…001110000011000101
312001211000100112022222
4301113112032003011
51332023243100203
640203350102125
73554341330424
oct612726160305
9161730315288
1053005050053
112052aa7269a
12a33334a945
134cc9501a57
1427cb88d2bb
1515a35d5038
hexc5758e0c5

53005050053 has 4 divisors (see below), whose sum is σ = 53005826688. Its totient is φ = 53004273420.

The previous prime is 53005050037. The next prime is 53005050103. The reversal of 53005050053 is 35005050035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35005050035 = 57001010007.

It is a cyclic number.

It is not a de Polignac number, because 53005050053 - 24 = 53005050037 is a prime.

It is a super-2 number, since 2×530050500532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53005080053) 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 3 ways as a sum of consecutive naturals, for example, 274901 + ... + 426122.

It is an arithmetic number, because the mean of its divisors is an integer number (13251456672).

Almost surely, 253005050053 is an apocalyptic number.

It is an amenable number.

53005050053 is a deficient number, since it is larger than the sum of its proper divisors (776635).

53005050053 is an equidigital number, since it uses as much as digits as its factorization.

53005050053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776634.

The product of its (nonzero) digits is 5625, while the sum is 26.

The spelling of 53005050053 in words is "fifty-three billion, five million, fifty thousand, fifty-three".

Divisors: 1 75611 701023 53005050053