25297825 has 24 divisors (see below), whose sum is σ = 36828992. Its totient is φ = 16873920.

The previous prime is 25297823. The next prime is 25297841. The reversal of 25297825 is 52879252.

It is not a de Polignac number, because 25297825 - 2¹ = 25297823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25297823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4522 + ... + 8428.

Almost surely, 2^25297825 is an apocalyptic number.

25297825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25297825 is a deficient number, since it is larger than the sum of its proper divisors (11531167).

25297825 is a wasteful number, since it uses less digits than its factorization.

25297825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961 (or 3956 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 25297825 is about 5029.6943247080. The cubic root of 25297825 is about 293.5583207038.

The spelling of 25297825 in words is "twenty-five million, two hundred ninety-seven thousand, eight hundred twenty-five".