51130756 has 6 divisors (see below), whose sum is σ = 89478830. Its totient is φ = 25565376.

The previous prime is 51130753. The next prime is 51130777. The reversal of 51130756 is 65703115.

It can be written as a sum of positive squares in only one way, i.e., 41396356 + 9734400 = 6434^2 + 3120^2 .

It is a super-2 number, since 2×51130756² = 5228708418263072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51130753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6391341 + ... + 6391348.

Almost surely, 2^51130756 is an apocalyptic number.

It is an amenable number.

51130756 is a deficient number, since it is larger than the sum of its proper divisors (38348074).

51130756 is a wasteful number, since it uses less digits than its factorization.

51130756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12782693 (or 12782691 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 51130756 is about 7150.5773193498. The cubic root of 51130756 is about 371.1596342012.

The spelling of 51130756 in words is "fifty-one million, one hundred thirty thousand, seven hundred fifty-six".