23265720500 has 96 divisors (see below), whose sum is σ = 56191943808. Its totient is φ = 8344224000.

The previous prime is 23265720479. The next prime is 23265720521. The reversal of 23265720500 is 502756232.

It is an interprime number because it is at equal distance from previous prime (23265720479) and next prime (23265720521).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372527 + ... + 430473.

It is an arithmetic number, because the mean of its divisors is an integer number (585332748).

Almost surely, 2^23265720500 is an apocalyptic number.

23265720500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23265720500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28095971904).

23265720500 is an abundant number, since it is smaller than the sum of its proper divisors (32926223308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23265720500 is a wasteful number, since it uses less digits than its factorization.

23265720500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58050 (or 58038 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 23265720500 in words is "twenty-three billion, two hundred sixty-five million, seven hundred twenty thousand, five hundred".