23515232 has 24 divisors (see below), whose sum is σ = 49857696. Its totient is φ = 10852992.

The previous prime is 23515213. The next prime is 23515249. The reversal of 23515232 is 23251532.

It is a super-2 number, since 2×23515232² = 1105932272027648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23515198 and 23515207.

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, 27848 + ... + 28679.

It is an arithmetic number, because the mean of its divisors is an integer number (2077404).

Almost surely, 2^23515232 is an apocalyptic number.

It is an amenable number.

23515232 is an abundant number, since it is smaller than the sum of its proper divisors (26342464).

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

23515232 is a wasteful number, since it uses less digits than its factorization.

23515232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56550 (or 56542 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 23515232 is about 4849.2506637624. The cubic root of 23515232 is about 286.4945881512.

Adding to 23515232 its reverse (23251532), we get a palindrome (46766764).

The spelling of 23515232 in words is "twenty-three million, five hundred fifteen thousand, two hundred thirty-two".