23515552 has 24 divisors (see below), whose sum is σ = 46512900. Its totient is φ = 11702784.

The previous prime is 23515543. The next prime is 23515553. The reversal of 23515552 is 25551532.

It can be written as a sum of positive squares in 2 ways, for example, as 21566736 + 1948816 = 4644^2 + 1396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23515552.

It is not an unprimeable number, because it can be changed into a prime (23515553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5724 + ... + 8932.

Almost surely, 2^23515552 is an apocalyptic number.

It is an amenable number.

23515552 is a deficient number, since it is larger than the sum of its proper divisors (22997348).

23515552 is a wasteful number, since it uses less digits than its factorization.

23515552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448 (or 3440 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 23515552 is about 4849.2836584386. The cubic root of 23515552 is about 286.4958877040.

The spelling of 23515552 in words is "twenty-three million, five hundred fifteen thousand, five hundred fifty-two".