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52057575737 = 247721016381
BaseRepresentation
bin110000011110110111…
…111001000100111001
311222100222111211220122
4300132313321010321
51323103214410422
635525342303025
73522015043556
oct603667710471
9158328454818
1052057575737
1120094165172
12a109b87a75
134ba812576b
14273bad5a2d
15154a32bd42
hexc1edf9139

52057575737 has 4 divisors (see below), whose sum is σ = 52078594596. Its totient is φ = 52036556880.

The previous prime is 52057575719. The next prime is 52057575749. The reversal of 52057575737 is 73757575025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34510864441 + 17546711296 = 185771^2 + 132464^2 .

It is a cyclic number.

It is not a de Polignac number, because 52057575737 - 26 = 52057575673 is a prime.

It is a super-2 number, since 2×520575757372 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52057575767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10505714 + ... + 10510667.

It is an arithmetic number, because the mean of its divisors is an integer number (13019648649).

Almost surely, 252057575737 is an apocalyptic number.

It is an amenable number.

52057575737 is a deficient number, since it is larger than the sum of its proper divisors (21018859).

52057575737 is a wasteful number, since it uses less digits than its factorization.

52057575737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21018858.

The product of its (nonzero) digits is 9003750, while the sum is 53.

The spelling of 52057575737 in words is "fifty-two billion, fifty-seven million, five hundred seventy-five thousand, seven hundred thirty-seven".

Divisors: 1 2477 21016381 52057575737