45990513 has 24 divisors (see below), whose sum is σ = 67776800. Its totient is φ = 30046464.

The previous prime is 45990509. The next prime is 45990533. The reversal of 45990513 is 31509954.

45990513 is a `hidden beast` number, since 4 + 59 + 90 + 513 = 666.

It is not a de Polignac number, because 45990513 - 2² = 45990509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45990533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121158 + ... + 121536.

Almost surely, 2^45990513 is an apocalyptic number.

It is an amenable number.

45990513 is a deficient number, since it is larger than the sum of its proper divisors (21786287).

45990513 is a wasteful number, since it uses less digits than its factorization.

45990513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 45990513 is about 6781.6305561421. The cubic root of 45990513 is about 358.2801532521.

The spelling of 45990513 in words is "forty-five million, nine hundred ninety thousand, five hundred thirteen".