23525053531 has 4 divisors (see below), whose sum is σ = 26885775472. Its totient is φ = 20164331592.

The previous prime is 23525053529. The next prime is 23525053537. The reversal of 23525053531 is 13535052532.

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

It is a cyclic number.

It is not a de Polignac number, because 23525053531 - 2¹ = 23525053529 is a prime.

It is a super-2 number, since 2×23525053531² (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 (23525053537) 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, 1680360960 + ... + 1680360973.

It is an arithmetic number, because the mean of its divisors is an integer number (6721443868).

Almost surely, 2^23525053531 is an apocalyptic number.

23525053531 is a deficient number, since it is larger than the sum of its proper divisors (3360721941).

23525053531 is an equidigital number, since it uses as much as digits as its factorization.

23525053531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360721940.

The product of its (nonzero) digits is 67500, while the sum is 34.

Subtracting from 23525053531 its reverse (13535052532), we obtain a palindrome (9990000999).

The spelling of 23525053531 in words is "twenty-three billion, five hundred twenty-five million, fifty-three thousand, five hundred thirty-one".