2501172 has 24 divisors (see below), whose sum is σ = 6484800. Its totient is φ = 833688.

The previous prime is 2501171. The next prime is 2501189. The reversal of 2501172 is 2711052.

It is a super-2 number, since 2×2501172² = 12511722747168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501171) 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, 11472 + ... + 11687.

It is an arithmetic number, because the mean of its divisors is an integer number (270200).

2^2501172 is an apocalyptic number.

It is an amenable number.

2501172 is an abundant number, since it is smaller than the sum of its proper divisors (3983628).

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

2501172 is a wasteful number, since it uses less digits than its factorization.

2501172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23172 (or 23164 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2501172 is about 1581.5094055996. The cubic root of 2501172 is about 135.7420861660.

The spelling of 2501172 in words is "two million, five hundred one thousand, one hundred seventy-two".