51108512 has 48 divisors (see below), whose sum is σ = 123846912. Its totient is φ = 20217600.

The previous prime is 51108457. The next prime is 51108539. The reversal of 51108512 is 21580115.

It is a super-2 number, since 2×51108512² = 5224159997708288, which contains 22 as substring.

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, 5864 + ... + 11687.

It is an arithmetic number, because the mean of its divisors is an integer number (2580144).

Almost surely, 2^51108512 is an apocalyptic number.

51108512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51108512 is an abundant number, since it is smaller than the sum of its proper divisors (72738400).

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

51108512 is a wasteful number, since it uses less digits than its factorization.

51108512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17581 (or 17573 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 51108512 is about 7149.0217512608. The cubic root of 51108512 is about 371.1058031148.

Adding to 51108512 its reverse (21580115), we get a palindrome (72688627).

The spelling of 51108512 in words is "fifty-one million, one hundred eight thousand, five hundred twelve".