23257305523 has 4 divisors (see below), whose sum is σ = 23309805528. Its totient is φ = 23204805520.

The previous prime is 23257305443. The next prime is 23257305527. The reversal of 23257305523 is 32550375232.

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 23257305523 - 2⁹ = 23257305011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23257305527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26249338 + ... + 26250223.

It is an arithmetic number, because the mean of its divisors is an integer number (5827451382).

Almost surely, 2^23257305523 is an apocalyptic number.

23257305523 is a deficient number, since it is larger than the sum of its proper divisors (52500005).

23257305523 is an equidigital number, since it uses as much as digits as its factorization.

23257305523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52500004.

The product of its (nonzero) digits is 189000, while the sum is 37.

The spelling of 23257305523 in words is "twenty-three billion, two hundred fifty-seven million, three hundred five thousand, five hundred twenty-three".