45287725 has 12 divisors (see below), whose sum is σ = 64179424. Its totient is φ = 31054320.

The previous prime is 45287717. The next prime is 45287731. The reversal of 45287725 is 52778254.

It is a happy number.

It is not a de Polignac number, because 45287725 - 2³ = 45287717 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 11 ways as a sum of consecutive naturals, for example, 129219 + ... + 129568.

Almost surely, 2^45287725 is an apocalyptic number.

It is an amenable number.

45287725 is a deficient number, since it is larger than the sum of its proper divisors (18891699).

45287725 is a wasteful number, since it uses less digits than its factorization.

45287725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258804 (or 258799 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 45287725 is about 6729.6155165061. The cubic root of 45287725 is about 356.4457998248.

The spelling of 45287725 in words is "forty-five million, two hundred eighty-seven thousand, seven hundred twenty-five".