45545172 has 24 divisors (see below), whose sum is σ = 106446816. Its totient is φ = 15156768.

The previous prime is 45545153. The next prime is 45545177. The reversal of 45545172 is 27154554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45545177) 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, 5418 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (4435284).

Almost surely, 2^45545172 is an apocalyptic number.

It is an amenable number.

45545172 is an abundant number, since it is smaller than the sum of its proper divisors (60901644).

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

45545172 is a wasteful number, since it uses less digits than its factorization.

45545172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247 (or 6245 counting only the distinct ones).

The product of its digits is 28000, while the sum is 33.

The square root of 45545172 is about 6748.7163223831. The cubic root of 45545172 is about 357.1199527864.

The spelling of 45545172 in words is "forty-five million, five hundred forty-five thousand, one hundred seventy-two".