25172965 has 8 divisors (see below), whose sum is σ = 30850560. Its totient is φ = 19709712.

The previous prime is 25172951. The next prime is 25172977. The reversal of 25172965 is 56927152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25172965 - 2¹⁵ = 25140197 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 53325 + ... + 53794.

It is an arithmetic number, because the mean of its divisors is an integer number (3856320).

Almost surely, 2^25172965 is an apocalyptic number.

It is an amenable number.

25172965 is a deficient number, since it is larger than the sum of its proper divisors (5677595).

25172965 is a wasteful number, since it uses less digits than its factorization.

25172965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107171.

The product of its digits is 37800, while the sum is 37.

The square root of 25172965 is about 5017.2666861549. The cubic root of 25172965 is about 293.0745615862.

The spelling of 25172965 in words is "twenty-five million, one hundred seventy-two thousand, nine hundred sixty-five".