45198925 has 6 divisors (see below), whose sum is σ = 56046698. Its totient is φ = 36159120.

The previous prime is 45198911. The next prime is 45198931. The reversal of 45198925 is 52989154.

It can be written as a sum of positive squares in 3 ways, for example, as 196 + 45198729 = 14^2 + 6723^2 .

It is not a de Polignac number, because 45198925 - 2¹⁵ = 45166157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 903954 + ... + 904003.

Almost surely, 2^45198925 is an apocalyptic number.

It is an amenable number.

45198925 is a deficient number, since it is larger than the sum of its proper divisors (10847773).

45198925 is a wasteful number, since it uses less digits than its factorization.

45198925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807967 (or 1807962 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The square root of 45198925 is about 6723.0145768100. The cubic root of 45198925 is about 356.2126748625.

The spelling of 45198925 in words is "forty-five million, one hundred ninety-eight thousand, nine hundred twenty-five".