51130112 has 72 divisors (see below), whose sum is σ = 113417472. Its totient is φ = 22809600.

The previous prime is 51130091. The next prime is 51130133. The reversal of 51130112 is 21103115.

It is an interprime number because it is at equal distance from previous prime (51130091) and next prime (51130133).

It is a super-2 number, since 2×51130112² = 5228576706265088, 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 7 ways as a sum of consecutive naturals, for example, 188537 + ... + 188807.

Almost surely, 2^51130112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56708736).

51130112 is an abundant number, since it is smaller than the sum of its proper divisors (62287360).

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

51130112 is a wasteful number, since it uses less digits than its factorization.

51130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 51130112 is about 7150.5322878790. The cubic root of 51130112 is about 371.1580759231.

Adding to 51130112 its reverse (21103115), we get a palindrome (72233227).

The spelling of 51130112 in words is "fifty-one million, one hundred thirty thousand, one hundred twelve".