45185500 has 24 divisors (see below), whose sum is σ = 98686224. Its totient is φ = 18074000.

The previous prime is 45185489. The next prime is 45185531. The reversal of 45185500 is 558154.

It is a congruent number.

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, 44686 + ... + 45685.

It is an arithmetic number, because the mean of its divisors is an integer number (4111926).

Almost surely, 2^45185500 is an apocalyptic number.

It is an amenable number.

45185500 is an abundant number, since it is smaller than the sum of its proper divisors (53500724).

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

45185500 is a wasteful number, since it uses less digits than its factorization.

45185500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90390 (or 90378 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 45185500 is about 6722.0160666276. The cubic root of 45185500 is about 356.1774039004.

The spelling of 45185500 in words is "forty-five million, one hundred eighty-five thousand, five hundred".