25572625 has 16 divisors (see below), whose sum is σ = 34371792. Its totient is φ = 18883200.

The previous prime is 25572623. The next prime is 25572629. The reversal of 25572625 is 52627552.

It can be written as a sum of positive squares in 8 ways, for example, as 7219969 + 18352656 = 2687^2 + 4284^2 .

It is not a de Polignac number, because 25572625 - 2¹ = 25572623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25572623) 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, 6244 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (2148237).

Almost surely, 2^25572625 is an apocalyptic number.

25572625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25572625 is a deficient number, since it is larger than the sum of its proper divisors (8799167).

25572625 is a wasteful number, since it uses less digits than its factorization.

25572625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765 (or 15755 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 25572625 is about 5056.9383029655. The cubic root of 25572625 is about 294.6174299628.

The spelling of 25572625 in words is "twenty-five million, five hundred seventy-two thousand, six hundred twenty-five".