45045256 has 8 divisors (see below), whose sum is σ = 84459870. Its totient is φ = 22522624.

The previous prime is 45045251. The next prime is 45045269. The reversal of 45045256 is 65254054.

It can be written as a sum of positive squares in only one way, i.e., 25100100 + 19945156 = 5010^2 + 4466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45045251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815321 + ... + 2815336.

Almost surely, 2^45045256 is an apocalyptic number.

It is an amenable number.

45045256 is a deficient number, since it is larger than the sum of its proper divisors (39414614).

45045256 is a wasteful number, since it uses less digits than its factorization.

45045256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630663 (or 5630659 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 45045256 is about 6711.5762679120. The cubic root of 45045256 is about 355.8085281019.

The spelling of 45045256 in words is "forty-five million, forty-five thousand, two hundred fifty-six".