45570217 has 32 divisors (see below), whose sum is σ = 62152704. Its totient is φ = 32313600.

The previous prime is 45570209. The next prime is 45570221. The reversal of 45570217 is 71207554.

It is not a de Polignac number, because 45570217 - 2³ = 45570209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45570257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40018 + ... + 41140.

It is an arithmetic number, because the mean of its divisors is an integer number (1942272).

Almost surely, 2^45570217 is an apocalyptic number.

It is an amenable number.

45570217 is a deficient number, since it is larger than the sum of its proper divisors (16582487).

45570217 is a wasteful number, since it uses less digits than its factorization.

45570217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 45570217 is about 6750.5716054272. The cubic root of 45570217 is about 357.1854001206.

The spelling of 45570217 in words is "forty-five million, five hundred seventy thousand, two hundred seventeen".