25979525 has 48 divisors (see below), whose sum is σ = 38955840. Its totient is φ = 17035200.

The previous prime is 25979521. The next prime is 25979531. The reversal of 25979525 is 52597952.

It is not a de Polignac number, because 25979525 - 2² = 25979521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25979521) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 604154 + ... + 604196.

It is an arithmetic number, because the mean of its divisors is an integer number (811580).

Almost surely, 2^25979525 is an apocalyptic number.

25979525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25979525 is a deficient number, since it is larger than the sum of its proper divisors (12976315).

25979525 is a wasteful number, since it uses less digits than its factorization.

25979525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 72 counting only the distinct ones).

The product of its digits is 283500, while the sum is 44.

The square root of 25979525 is about 5097.0113792300. The cubic root of 25979525 is about 296.1718208966.

The spelling of 25979525 in words is "twenty-five million, nine hundred seventy-nine thousand, five hundred twenty-five".