51130755 has 24 divisors (see below), whose sum is σ = 95445168. Its totient is φ = 25171776.

The previous prime is 51130753. The next prime is 51130777. The reversal of 51130755 is 55703115.

It is not a de Polignac number, because 51130755 - 2¹ = 51130753 is a prime.

It is a super-2 number, since 2×51130755² = 5228708213740050, which contains 22 as substring.

It is a zygodrome in base 2.

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 in 23 ways as a sum of consecutive naturals, for example, 43117 + ... + 44286.

It is an arithmetic number, because the mean of its divisors is an integer number (3976882).

Almost surely, 2^51130755 is an apocalyptic number.

51130755 is a deficient number, since it is larger than the sum of its proper divisors (44314413).

51130755 is a wasteful number, since it uses less digits than its factorization.

51130755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87427 (or 87424 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 51130755 is about 7150.5772494254. The cubic root of 51130755 is about 371.1596317815.

The spelling of 51130755 in words is "fifty-one million, one hundred thirty thousand, seven hundred fifty-five".