25985172 has 24 divisors (see below), whose sum is σ = 61923456. Its totient is φ = 8477248.

The previous prime is 25985171. The next prime is 25985173. The reversal of 25985172 is 27158952.

It is an interprime number because it is at equal distance from previous prime (25985171) and next prime (25985173).

It is a self number, because there is not a number n which added to its sum of digits gives 25985172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25985171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22473 + ... + 23600.

It is an arithmetic number, because the mean of its divisors is an integer number (2580144).

Almost surely, 2^25985172 is an apocalyptic number.

It is an amenable number.

25985172 is an abundant number, since it is smaller than the sum of its proper divisors (35938284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25985172 is a wasteful number, since it uses less digits than its factorization.

25985172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46127 (or 46125 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 25985172 is about 5097.5653012002. The cubic root of 25985172 is about 296.1932783213.

The spelling of 25985172 in words is "twenty-five million, nine hundred eighty-five thousand, one hundred seventy-two".