25319625 has 32 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 13400000.

The previous prime is 25319611. The next prime is 25319627. The reversal of 25319625 is 52691352.

It is not a de Polignac number, because 25319625 - 2¹⁴ = 25303241 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25319627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93991 + ... + 94259.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^25319625 is an apocalyptic number.

25319625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25319625 is the 2690-th nonagonal number.

It is an amenable number.

25319625 is a deficient number, since it is larger than the sum of its proper divisors (17137335).

25319625 is a wasteful number, since it uses less digits than its factorization.

25319625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 528 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 25319625 is about 5031.8609877460. The cubic root of 25319625 is about 293.6426195718.

The spelling of 25319625 in words is "twenty-five million, three hundred nineteen thousand, six hundred twenty-five".