25500988 has 12 divisors (see below), whose sum is σ = 44667000. Its totient is φ = 12738992.

The previous prime is 25500973. The next prime is 25500991. The reversal of 25500988 is 88900552.

It is a happy number.

It is a super-2 number, since 2×25500988² = 1300600777952288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (3722250).

Almost surely, 2^25500988 is an apocalyptic number.

It is an amenable number.

25500988 is a deficient number, since it is larger than the sum of its proper divisors (19166012).

25500988 is a wasteful number, since it uses less digits than its factorization.

25500988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756 (or 5754 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 25500988 is about 5049.8502948107. The cubic root of 25500988 is about 294.3420671834.

The spelling of 25500988 in words is "twenty-five million, five hundred thousand, nine hundred eighty-eight".