51814722 has 32 divisors (see below), whose sum is σ = 108656640. Its totient is φ = 16441040.

The previous prime is 51814703. The next prime is 51814723. The reversal of 51814722 is 22741815.

It is a self number, because there is not a number n which added to its sum of digits gives 51814722.

It is not an unprimeable number, because it can be changed into a prime (51814723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32197 + ... + 33767.

It is an arithmetic number, because the mean of its divisors is an integer number (3395520).

Almost surely, 2^51814722 is an apocalyptic number.

51814722 is an abundant number, since it is smaller than the sum of its proper divisors (56841918).

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

51814722 is a wasteful number, since it uses less digits than its factorization.

51814722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its digits is 4480, while the sum is 30.

The square root of 51814722 is about 7198.2443692889. The cubic root of 51814722 is about 372.8072854419.

The spelling of 51814722 in words is "fifty-one million, eight hundred fourteen thousand, seven hundred twenty-two".