25523488 has 24 divisors (see below), whose sum is σ = 51609852. Its totient is φ = 12416256.

The previous prime is 25523483. The next prime is 25523539. The reversal of 25523488 is 88432552.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 784 = 5052^2 + 28^2 .

It is a super-2 number, since 2×25523488² = 1302896879372288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (25523483) 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, 9595 + ... + 11962.

Almost surely, 2^25523488 is an apocalyptic number.

It is an amenable number.

25523488 is an abundant number, since it is smaller than the sum of its proper divisors (26086364).

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

25523488 is a wasteful number, since it uses less digits than its factorization.

25523488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21604 (or 21596 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 25523488 is about 5052.0775924366. The cubic root of 25523488 is about 294.4286095779.

The spelling of 25523488 in words is "twenty-five million, five hundred twenty-three thousand, four hundred eighty-eight".