25488128 has 18 divisors (see below), whose sum is σ = 50877204. Its totient is φ = 12743936.

The previous prime is 25488109. The next prime is 25488137. The reversal of 25488128 is 82188452.

It is a junction number, because it is equal to n+sod(n) for n = 25488091 and 25488100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49526 + ... + 50037.

Almost surely, 2^25488128 is an apocalyptic number.

It is an amenable number.

25488128 is a deficient number, since it is larger than the sum of its proper divisors (25389076).

25488128 is an frugal number, since it uses more digits than its factorization.

25488128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99579 (or 99565 counting only the distinct ones).

The product of its digits is 40960, while the sum is 38.

The square root of 25488128 is about 5048.5768291668. The cubic root of 25488128 is about 294.2925805327.

The spelling of 25488128 in words is "twenty-five million, four hundred eighty-eight thousand, one hundred twenty-eight".