25438488 has 16 divisors (see below), whose sum is σ = 63596280. Its totient is φ = 8479488.

The previous prime is 25438487. The next prime is 25438513. The reversal of 25438488 is 88483452.

It is a happy number.

It is a super-2 number, since 2×25438488² = 1294233343452288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25438487) 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, 529945 + ... + 529992.

Almost surely, 2^25438488 is an apocalyptic number.

It is an amenable number.

25438488 is an abundant number, since it is smaller than the sum of its proper divisors (38157792).

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

25438488 is a wasteful number, since it uses less digits than its factorization.

25438488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059946 (or 1059942 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 25438488 is about 5043.6581961905. The cubic root of 25438488 is about 294.1014042355.

The spelling of 25438488 in words is "twenty-five million, four hundred thirty-eight thousand, four hundred eighty-eight".