25256425 has 12 divisors (see below), whose sum is σ = 31850640. Its totient is φ = 19861520.

The previous prime is 25256383. The next prime is 25256431. The reversal of 25256425 is 52465252.

It is a happy number.

It is not a de Polignac number, because 25256425 - 2⁹ = 25255913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7087 + ... + 10036.

It is an arithmetic number, because the mean of its divisors is an integer number (2654220).

Almost surely, 2^25256425 is an apocalyptic number.

25256425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25256425 is a deficient number, since it is larger than the sum of its proper divisors (6594215).

25256425 is a wasteful number, since it uses less digits than its factorization.

25256425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17192 (or 17187 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 25256425 is about 5025.5770812913. The cubic root of 25256425 is about 293.3980967826.

The spelling of 25256425 in words is "twenty-five million, two hundred fifty-six thousand, four hundred twenty-five".