45522172 has 6 divisors (see below), whose sum is σ = 79663808. Its totient is φ = 22761084.

The previous prime is 45522161. The next prime is 45522193. The reversal of 45522172 is 27122554.

It is a self number, because there is not a number n which added to its sum of digits gives 45522172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5690268 + ... + 5690275.

Almost surely, 2^45522172 is an apocalyptic number.

It is an amenable number.

45522172 is a deficient number, since it is larger than the sum of its proper divisors (34141636).

45522172 is a wasteful number, since it uses less digits than its factorization.

45522172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380547 (or 11380545 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 45522172 is about 6747.0120794319. The cubic root of 45522172 is about 357.0598282875.

It can be divided in two parts, 4552 and 2172, that added together give a square (6724 = 82²).

The spelling of 45522172 in words is "forty-five million, five hundred twenty-two thousand, one hundred seventy-two".