45978725 has 24 divisors (see below), whose sum is σ = 64079232. Its totient is φ = 32472000.

The previous prime is 45978661. The next prime is 45978733. The reversal of 45978725 is 52787954.

It is a happy number.

It is not a de Polignac number, because 45978725 - 2⁶ = 45978661 is a prime.

It is a super-2 number, since 2×45978725² = 4228086305251250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45978725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4400 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (2669968).

Almost surely, 2^45978725 is an apocalyptic number.

It is an amenable number.

45978725 is a deficient number, since it is larger than the sum of its proper divisors (18100507).

45978725 is a wasteful number, since it uses less digits than its factorization.

45978725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197 (or 6192 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 45978725 is about 6780.7613879269. The cubic root of 45978725 is about 358.2495399288.

The spelling of 45978725 in words is "forty-five million, nine hundred seventy-eight thousand, seven hundred twenty-five".