51112893 has 32 divisors (see below), whose sum is σ = 77012992. Its totient is φ = 29937600.

The previous prime is 51112883. The next prime is 51112949. The reversal of 51112893 is 39821115.

It is not a de Polignac number, because 51112893 - 2⁵ = 51112861 is a prime.

It is a super-2 number, since 2×51112893² = 5225055661658898, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51112893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80688 + ... + 81318.

It is an arithmetic number, because the mean of its divisors is an integer number (2406656).

Almost surely, 2^51112893 is an apocalyptic number.

It is an amenable number.

51112893 is a deficient number, since it is larger than the sum of its proper divisors (25900099).

51112893 is a wasteful number, since it uses less digits than its factorization.

51112893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 2160, while the sum is 30.

The square root of 51112893 is about 7149.3281502530. The cubic root of 51112893 is about 371.1164064892.

The spelling of 51112893 in words is "fifty-one million, one hundred twelve thousand, eight hundred ninety-three".