25624580 has 12 divisors (see below), whose sum is σ = 53811660. Its totient is φ = 10249824.

The previous prime is 25624579. The next prime is 25624583. The reversal of 25624580 is 8542652.

It can be written as a sum of positive squares in 2 ways, for example, as 14760964 + 10863616 = 3842^2 + 3296^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25624583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640595 + ... + 640634.

It is an arithmetic number, because the mean of its divisors is an integer number (4484305).

Almost surely, 2^25624580 is an apocalyptic number.

25624580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25624580 is an abundant number, since it is smaller than the sum of its proper divisors (28187080).

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

25624580 is a wasteful number, since it uses less digits than its factorization.

25624580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281238 (or 1281236 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 25624580 is about 5062.0726980161. The cubic root of 25624580 is about 294.8168162744.

The spelling of 25624580 in words is "twenty-five million, six hundred twenty-four thousand, five hundred eighty".