45500215257 has 12 divisors (see below), whose sum is σ = 75111466560. Its totient is φ = 26000122968.

The previous prime is 45500215253. The next prime is 45500215259. The reversal of 45500215257 is 75251200554.

45500215257 is a `hidden beast` number, since 4 + 550 + 0 + 2 + 1 + 52 + 57 = 666.

It is not a de Polignac number, because 45500215257 - 2² = 45500215253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45500215253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361112757 + ... + 361112882.

It is an arithmetic number, because the mean of its divisors is an integer number (6259288880).

Almost surely, 2^45500215257 is an apocalyptic number.

It is an amenable number.

45500215257 is a deficient number, since it is larger than the sum of its proper divisors (29611251303).

45500215257 is a wasteful number, since it uses less digits than its factorization.

45500215257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722225652 (or 722225649 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The spelling of 45500215257 in words is "forty-five billion, five hundred million, two hundred fifteen thousand, two hundred fifty-seven".