51130522 has 8 divisors (see below), whose sum is σ = 78768756. Its totient is φ = 24874272.

The previous prime is 51130507. The next prime is 51130529. The reversal of 51130522 is 22503115.

It can be written as a sum of positive squares in 2 ways, for example, as 50282281 + 848241 = 7091^2 + 921^2 .

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

It is a super-2 number, since 2×51130522² = 5228660559984968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51130522.

It is not an unprimeable number, because it can be changed into a prime (51130529) 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, 345403 + ... + 345550.

Almost surely, 2^51130522 is an apocalyptic number.

51130522 is a deficient number, since it is larger than the sum of its proper divisors (27638234).

51130522 is a wasteful number, since it uses less digits than its factorization.

51130522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690992.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51130522 is about 7150.5609570159. The cubic root of 51130522 is about 371.1590679961.

Adding to 51130522 its reverse (22503115), we get a palindrome (73633637).

The spelling of 51130522 in words is "fifty-one million, one hundred thirty thousand, five hundred twenty-two".