25648988 has 24 divisors (see below), whose sum is σ = 48186432. Its totient is φ = 11902464.

The previous prime is 25648969. The next prime is 25648991. The reversal of 25648988 is 88984652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (2007768).

Almost surely, 2^25648988 is an apocalyptic number.

It is an amenable number.

25648988 is a deficient number, since it is larger than the sum of its proper divisors (22537444).

25648988 is a wasteful number, since it uses less digits than its factorization.

25648988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261 (or 5259 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 50.

The square root of 25648988 is about 5064.4829943440. The cubic root of 25648988 is about 294.9103931618.

The spelling of 25648988 in words is "twenty-five million, six hundred forty-eight thousand, nine hundred eighty-eight".