45572508 has 18 divisors (see below), whose sum is σ = 115197264. Its totient is φ = 15190824.

The previous prime is 45572489. The next prime is 45572509. The reversal of 45572508 is 80527554.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1265903 = 45572508 / (4 + 5 + 5 + 7 + 2 + 5 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45572509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632916 + ... + 632987.

It is an arithmetic number, because the mean of its divisors is an integer number (6399848).

Almost surely, 2^45572508 is an apocalyptic number.

It is an amenable number.

45572508 is an abundant number, since it is smaller than the sum of its proper divisors (69624756).

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

45572508 is a wasteful number, since it uses less digits than its factorization.

45572508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265913 (or 1265908 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 45572508 is about 6750.7412926285. The cubic root of 45572508 is about 357.1913857409.

The spelling of 45572508 in words is "forty-five million, five hundred seventy-two thousand, five hundred eight".