23525280 has 216 divisors, whose sum is σ = 87832836. Its totient is φ = 5713920.

The previous prime is 23525261. The next prime is 23525309. The reversal of 23525280 is 8252532.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 138384 = 4836^2 + 372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 758865 + ... + 758895.

Almost surely, 2^23525280 is an apocalyptic number.

23525280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23525280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43916418).

23525280 is an abundant number, since it is smaller than the sum of its proper divisors (64307556).

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

23525280 is a wasteful number, since it uses less digits than its factorization.

23525280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 23525280 is about 4850.2865894708. The cubic root of 23525280 is about 286.5353884815.

The spelling of 23525280 in words is "twenty-three million, five hundred twenty-five thousand, two hundred eighty".