51692725 has 12 divisors (see below), whose sum is σ = 73256224. Its totient is φ = 35446320.

The previous prime is 51692701. The next prime is 51692741. The reversal of 51692725 is 52729615.

It is not a de Polignac number, because 51692725 - 2¹¹ = 51690677 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, 147519 + ... + 147868.

Almost surely, 2^51692725 is an apocalyptic number.

It is an amenable number.

51692725 is a deficient number, since it is larger than the sum of its proper divisors (21563499).

51692725 is a wasteful number, since it uses less digits than its factorization.

51692725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295404 (or 295399 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 51692725 is about 7189.7652951957. The cubic root of 51692725 is about 372.5144657536.

The spelling of 51692725 in words is "fifty-one million, six hundred ninety-two thousand, seven hundred twenty-five".