51108072 has 64 divisors (see below), whose sum is σ = 131414400. Its totient is φ = 16558080.

The previous prime is 51108067. The next prime is 51108073. The reversal of 51108072 is 27080115.

51108072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51108072² = 5224070047114368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (51108073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151488 + ... + 151824.

It is an arithmetic number, because the mean of its divisors is an integer number (2053350).

Almost surely, 2^51108072 is an apocalyptic number.

It is an amenable number.

51108072 is an abundant number, since it is smaller than the sum of its proper divisors (80306328).

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

51108072 is a wasteful number, since it uses less digits than its factorization.

51108072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 51108072 is about 7148.9909777534. The cubic root of 51108072 is about 371.1047381453.

Adding to 51108072 its reverse (27080115), we get a palindrome (78188187).

The spelling of 51108072 in words is "fifty-one million, one hundred eight thousand, seventy-two".