25574980 has 24 divisors (see below), whose sum is σ = 55019160. Its totient is φ = 9980160.

The previous prime is 25574977. The next prime is 25575001. The reversal of 25574980 is 8947552.

It can be written as a sum of positive squares in 4 ways, for example, as 1052676 + 24522304 = 1026^2 + 4952^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14775 + ... + 16414.

It is an arithmetic number, because the mean of its divisors is an integer number (2292465).

Almost surely, 2^25574980 is an apocalyptic number.

25574980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25574980 is an abundant number, since it is smaller than the sum of its proper divisors (29444180).

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

25574980 is a wasteful number, since it uses less digits than its factorization.

25574980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31239 (or 31237 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 25574980 is about 5057.1711460064. The cubic root of 25574980 is about 294.6264735234.

The spelling of 25574980 in words is "twenty-five million, five hundred seventy-four thousand, nine hundred eighty".