51322316 has 12 divisors (see below), whose sum is σ = 89865888. Its totient is φ = 25646352.

The previous prime is 51322309. The next prime is 51322321. The reversal of 51322316 is 61322315.

It is a junction number, because it is equal to n+sod(n) for n = 51322291 and 51322300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8750 + ... + 13386.

It is an arithmetic number, because the mean of its divisors is an integer number (7488824).

Almost surely, 2^51322316 is an apocalyptic number.

It is an amenable number.

51322316 is a deficient number, since it is larger than the sum of its proper divisors (38543572).

51322316 is a wasteful number, since it uses less digits than its factorization.

51322316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408 (or 7406 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 51322316 is about 7163.9595197070. The cubic root of 51322316 is about 371.6225697469.

Subtracting 51322316 from its reverse (61322315), we obtain a palindrome (9999999).

The spelling of 51322316 in words is "fifty-one million, three hundred twenty-two thousand, three hundred sixteen".