51130 has 8 divisors (see below), whose sum is σ = 92052. Its totient is φ = 20448.

The previous prime is 51109. The next prime is 51131. The reversal of 51130 is 3115.

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 8281 = 207^2 + 91^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51130² = 5228553800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 5113 = 51130 / (5 + 1 + 1 + 3 + 0).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (51131) 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, 2547 + ... + 2566.

2⁵¹¹³⁰ is an apocalyptic number.

51130 is a deficient number, since it is larger than the sum of its proper divisors (40922).

51130 is a wasteful number, since it uses less digits than its factorization.

51130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 51130 is about 226.1194374661. The cubic root of 51130 is about 37.1157804917.

Subtracting from 51130 its product of nonzero digits (15), we obtain a palindrome (51115).

Adding to 51130 its reverse (3115), we get a palindrome (54245).

It can be divided in two parts, 51 and 130, that added together give a palindrome (181).

The spelling of 51130 in words is "fifty-one thousand, one hundred thirty".