23155536 has 20 divisors (see below), whose sum is σ = 59818592. Its totient is φ = 7718496.

The previous prime is 23155523. The next prime is 23155567. The reversal of 23155536 is 63555132.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241156 + ... + 241251.

Almost surely, 2^23155536 is an apocalyptic number.

It is an amenable number.

23155536 is an abundant number, since it is smaller than the sum of its proper divisors (36663056).

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

23155536 is a wasteful number, since it uses less digits than its factorization.

23155536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482418 (or 482412 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 23155536 is about 4812.0199500833. The cubic root of 23155536 is about 285.0263072053.

The spelling of 23155536 in words is "twenty-three million, one hundred fifty-five thousand, five hundred thirty-six".