25522172 has 24 divisors (see below), whose sum is σ = 49276752. Its totient is φ = 11491200.

The previous prime is 25522169. The next prime is 25522181. The reversal of 25522172 is 27122552.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 3854 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (2053198).

Almost surely, 2^25522172 is an apocalyptic number.

It is an amenable number.

25522172 is a deficient number, since it is larger than the sum of its proper divisors (23754580).

25522172 is a wasteful number, since it uses less digits than its factorization.

25522172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12029 (or 12027 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 25522172 is about 5051.9473473107. The cubic root of 25522172 is about 294.4235492101.

The spelling of 25522172 in words is "twenty-five million, five hundred twenty-two thousand, one hundred seventy-two".