23153512520 has 64 divisors (see below), whose sum is σ = 52551555840. Its totient is φ = 9180576000.

The previous prime is 23153512489. The next prime is 23153512549. The reversal of 23153512520 is 2521535132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3034310 + ... + 3041930.

It is an arithmetic number, because the mean of its divisors is an integer number (821118060).

Almost surely, 2^23153512520 is an apocalyptic number.

23153512520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23153512520 is an abundant number, since it is smaller than the sum of its proper divisors (29398043320).

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

23153512520 is a wasteful number, since it uses less digits than its factorization.

23153512520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 23153512520 in words is "twenty-three billion, one hundred fifty-three million, five hundred twelve thousand, five hundred twenty".