25572980 has 24 divisors (see below), whose sum is σ = 53845512. Its totient is φ = 10202112.

The previous prime is 25572961. The next prime is 25572997. The reversal of 25572980 is 8927552.

It can be written as a sum of positive squares in 4 ways, for example, as 1817104 + 23755876 = 1348^2 + 4874^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 7184 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (2243563).

Almost surely, 2^25572980 is an apocalyptic number.

25572980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25572980 is an abundant number, since it is smaller than the sum of its proper divisors (28272532).

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

25572980 is a wasteful number, since it uses less digits than its factorization.

25572980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 25572980 is about 5056.9734031335. The cubic root of 25572980 is about 294.6187932527.

The spelling of 25572980 in words is "twenty-five million, five hundred seventy-two thousand, nine hundred eighty".