51130566 has 24 divisors (see below), whose sum is σ = 112601424. Its totient is φ = 16763760.

The previous prime is 51130537. The next prime is 51130571. The reversal of 51130566 is 66503115.

It is a happy number.

It is a super-2 number, since 2×51130566² = 5228669558960712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22186 + ... + 24381.

It is an arithmetic number, because the mean of its divisors is an integer number (4691726).

Almost surely, 2^51130566 is an apocalyptic number.

51130566 is an abundant number, since it is smaller than the sum of its proper divisors (61470858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51130566 is a wasteful number, since it uses less digits than its factorization.

51130566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46636 (or 46633 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51130566 is about 7150.5640336969. The cubic root of 51130566 is about 371.1591744621.

The spelling of 51130566 in words is "fifty-one million, one hundred thirty thousand, five hundred sixty-six".