252735277703657 has 4 divisors (see below), whose sum is σ = 288840317375616. Its totient is φ = 216630238031700.

The previous prime is 252735277703651. The next prime is 252735277703669. The reversal of 252735277703657 is 756307772537252.

It is a happy number.

252735277703657 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 252735277703657 - 2³⁶ = 252666558226921 is a prime.

It is a super-2 number, since 2×252735277703657² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252735277703651) 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, 18052519835969 + ... + 18052519835982.

It is an arithmetic number, because the mean of its divisors is an integer number (72210079343904).

Almost surely, 2^{252735277703657} is an apocalyptic number.

It is an amenable number.

252735277703657 is a deficient number, since it is larger than the sum of its proper divisors (36105039671959).

252735277703657 is an equidigital number, since it uses as much as digits as its factorization.

252735277703657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36105039671958.

The product of its (nonzero) digits is 907578000, while the sum is 68.

The spelling of 252735277703657 in words is "two hundred fifty-two trillion, seven hundred thirty-five billion, two hundred seventy-seven million, seven hundred three thousand, six hundred fifty-seven".