51356056 has 16 divisors (see below), whose sum is σ = 100479600. Its totient is φ = 24561504.

The previous prime is 51356021. The next prime is 51356059. The reversal of 51356056 is 65065315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51356059) 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, 139371 + ... + 139738.

It is an arithmetic number, because the mean of its divisors is an integer number (6279975).

Almost surely, 2^51356056 is an apocalyptic number.

It is an amenable number.

51356056 is a deficient number, since it is larger than the sum of its proper divisors (49123544).

51356056 is a wasteful number, since it uses less digits than its factorization.

51356056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279138 (or 279134 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 51356056 is about 7166.3139758177. The cubic root of 51356056 is about 371.7039885124.

The spelling of 51356056 in words is "fifty-one million, three hundred fifty-six thousand, fifty-six".