51322315 has 32 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 34446720.

The previous prime is 51322309. The next prime is 51322321.

51322315 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (51322309) and next prime (51322321).

It is not a de Polignac number, because 51322315 - 2¹¹ = 51320267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35986 + ... + 37384.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^51322315 is an apocalyptic number.

51322315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51322315 is a deficient number, since it is larger than the sum of its proper divisors (21253685).

51322315 is a wasteful number, since it uses less digits than its factorization.

51322315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467.

The product of its digits is 900, while the sum is 22.

The square root of 51322315 is about 7163.9594499132. The cubic root of 51322315 is about 371.6225673332.

It can be divided in two parts, 5132 and 2315, that added together give a palindrome (7447).

The spelling of 51322315 in words is "fifty-one million, three hundred twenty-two thousand, three hundred fifteen".