25189172 has 24 divisors (see below), whose sum is σ = 47246976. Its totient is φ = 11708288.

The previous prime is 25189159. The next prime is 25189181. The reversal of 25189172 is 27198152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3413 + ... + 7875.

It is an arithmetic number, because the mean of its divisors is an integer number (1968624).

Almost surely, 2^25189172 is an apocalyptic number.

It is an amenable number.

25189172 is a deficient number, since it is larger than the sum of its proper divisors (22057804).

25189172 is a wasteful number, since it uses less digits than its factorization.

25189172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567 (or 4565 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 25189172 is about 5018.8815487118. The cubic root of 25189172 is about 293.1374443975.

The spelling of 25189172 in words is "twenty-five million, one hundred eighty-nine thousand, one hundred seventy-two".