51872322 has 16 divisors (see below), whose sum is σ = 103844160. Its totient is φ = 17274192.

The previous prime is 51872309. The next prime is 51872333. The reversal of 51872322 is 22327815.

It is a self number, because there is not a number n which added to its sum of digits gives 51872322.

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, 3804 + ... + 10872.

It is an arithmetic number, because the mean of its divisors is an integer number (6490260).

Almost surely, 2^51872322 is an apocalyptic number.

51872322 is an abundant number, since it is smaller than the sum of its proper divisors (51971838).

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

51872322 is a wasteful number, since it uses less digits than its factorization.

51872322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297.

The product of its digits is 6720, while the sum is 30.

The square root of 51872322 is about 7202.2442335705. The cubic root of 51872322 is about 372.9453784176.

The spelling of 51872322 in words is "fifty-one million, eight hundred seventy-two thousand, three hundred twenty-two".