25311925 has 12 divisors (see below), whose sum is σ = 32470020. Its totient is φ = 19550720.

The previous prime is 25311919. The next prime is 25311931. The reversal of 25311925 is 52911352.

It is an interprime number because it is at equal distance from previous prime (25311919) and next prime (25311931).

It can be written as a sum of positive squares in 6 ways, for example, as 481636 + 24830289 = 694^2 + 4983^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25311925 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25311893 and 25311902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16732 + ... + 18181.

It is an arithmetic number, because the mean of its divisors is an integer number (2705835).

Almost surely, 2^25311925 is an apocalyptic number.

25311925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25311925 is a deficient number, since it is larger than the sum of its proper divisors (7158095).

25311925 is a wasteful number, since it uses less digits than its factorization.

25311925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34952 (or 34947 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 25311925 is about 5031.0958050906. The cubic root of 25311925 is about 293.6128498127.

The spelling of 25311925 in words is "twenty-five million, three hundred eleven thousand, nine hundred twenty-five".