51372856 has 16 divisors (see below), whose sum is σ = 96440040. Its totient is φ = 25655520.

The previous prime is 51372817. The next prime is 51372857. The reversal of 51372856 is 65827315.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51372857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4186 + ... + 10966.

Almost surely, 2^51372856 is an apocalyptic number.

It is an amenable number.

51372856 is a deficient number, since it is larger than the sum of its proper divisors (45067184).

51372856 is a wasteful number, since it uses less digits than its factorization.

51372856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734 (or 7730 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 51372856 is about 7167.4860306805. The cubic root of 51372856 is about 371.7445156783.

The spelling of 51372856 in words is "fifty-one million, three hundred seventy-two thousand, eight hundred fifty-six".