23455520 has 48 divisors (see below), whose sum is σ = 60455808. Its totient is φ = 8528640.

The previous prime is 23455507. The next prime is 23455541. The reversal of 23455520 is 2555432.

It is a super-2 number, since 2×23455520² = 1100322836940800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23455520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4904 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1259496).

Almost surely, 2^23455520 is an apocalyptic number.

23455520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23455520 is an abundant number, since it is smaller than the sum of its proper divisors (37000288).

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

23455520 is a wasteful number, since it uses less digits than its factorization.

23455520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13353 (or 13345 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 23455520 is about 4843.0899227662. The cubic root of 23455520 is about 286.2518849631.

The spelling of 23455520 in words is "twenty-three million, four hundred fifty-five thousand, five hundred twenty".