25225825 has 24 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 18279360.

The previous prime is 25225817. The next prime is 25225831. The reversal of 25225825 is 52852252.

It is not a de Polignac number, because 25225825 - 2³ = 25225817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9771 + ... + 12079.

It is an arithmetic number, because the mean of its divisors is an integer number (1432200).

Almost surely, 2^25225825 is an apocalyptic number.

25225825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25225825 is a deficient number, since it is larger than the sum of its proper divisors (9146975).

25225825 is a wasteful number, since it uses less digits than its factorization.

25225825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2356 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 25225825 is about 5022.5317321048. The cubic root of 25225825 is about 293.2795578362.

The spelling of 25225825 in words is "twenty-five million, two hundred twenty-five thousand, eight hundred twenty-five".