23521152 has 32 divisors (see below), whose sum is σ = 62479080. Its totient is φ = 7840256.

The previous prime is 23521139. The next prime is 23521153. The reversal of 23521152 is 25112532.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23521153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30243 + ... + 31010.

Almost surely, 2^23521152 is an apocalyptic number.

It is an amenable number.

23521152 is an abundant number, since it is smaller than the sum of its proper divisors (38957928).

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

23521152 is an equidigital number, since it uses as much as digits as its factorization.

23521152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61270 (or 61258 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 23521152 is about 4849.8610289368. The cubic root of 23521152 is about 286.5186279687.

Adding to 23521152 its reverse (25112532), we get a palindrome (48633684).

The spelling of 23521152 in words is "twenty-three million, five hundred twenty-one thousand, one hundred fifty-two".