25536660 has 48 divisors (see below), whose sum is σ = 73441536. Its totient is φ = 6625152.

The previous prime is 25536659. The next prime is 25536661. The reversal of 25536660 is 6663552.

It is an interprime number because it is at equal distance from previous prime (25536659) and next prime (25536661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25536661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3532 + ... + 7971.

It is an arithmetic number, because the mean of its divisors is an integer number (1530032).

Almost surely, 2^25536660 is an apocalyptic number.

25536660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25536660 is an abundant number, since it is smaller than the sum of its proper divisors (47904876).

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

25536660 is a wasteful number, since it uses less digits than its factorization.

25536660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11552 (or 11550 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 25536660 is about 5053.3810463886. The cubic root of 25536660 is about 294.4792498181.

The spelling of 25536660 in words is "twenty-five million, five hundred thirty-six thousand, six hundred sixty".