45515620 has 24 divisors (see below), whose sum is σ = 99739584. Its totient is φ = 17414496.

The previous prime is 45515563. The next prime is 45515641. The reversal of 45515620 is 2651554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49014 + ... + 49933.

It is an arithmetic number, because the mean of its divisors is an integer number (4155816).

Almost surely, 2^45515620 is an apocalyptic number.

It is an amenable number.

45515620 is an abundant number, since it is smaller than the sum of its proper divisors (54223964).

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

45515620 is a wasteful number, since it uses less digits than its factorization.

45515620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98979 (or 98977 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 45515620 is about 6746.5265136958. The cubic root of 45515620 is about 357.0426969414.

The spelling of 45515620 in words is "forty-five million, five hundred fifteen thousand, six hundred twenty".