253657530797 has 32 divisors (see below), whose sum is σ = 286590942720. Its totient is φ = 222528600000.

The previous prime is 253657530727. The next prime is 253657530811. The reversal of 253657530797 is 797035756352.

It is a cyclic number.

It is not a de Polignac number, because 253657530797 - 2⁸ = 253657530541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253657530727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20698922 + ... + 20711172.

It is an arithmetic number, because the mean of its divisors is an integer number (8955966960).

Almost surely, 2^253657530797 is an apocalyptic number.

It is an amenable number.

253657530797 is a deficient number, since it is larger than the sum of its proper divisors (32933411923).

253657530797 is a wasteful number, since it uses less digits than its factorization.

253657530797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12905.

The product of its (nonzero) digits is 41674500, while the sum is 59.

The spelling of 253657530797 in words is "two hundred fifty-three billion, six hundred fifty-seven million, five hundred thirty thousand, seven hundred ninety-seven".