51507056 has 20 divisors (see below), whose sum is σ = 100144632. Its totient is φ = 25663296.

The previous prime is 51507047. The next prime is 51507067. The reversal of 51507056 is 65070515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806 + ... + 10181.

Almost surely, 2^51507056 is an apocalyptic number.

It is an amenable number.

51507056 is a deficient number, since it is larger than the sum of its proper divisors (48637576).

51507056 is a wasteful number, since it uses less digits than its factorization.

51507056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11288 (or 11282 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 51507056 is about 7176.8416451807. The cubic root of 51507056 is about 372.0679337913.

The spelling of 51507056 in words is "fifty-one million, five hundred seven thousand, fifty-six".