51872315 has 16 divisors (see below), whose sum is σ = 68675040. Its totient is φ = 37297920.

The previous prime is 51872309. The next prime is 51872333. The reversal of 51872315 is 51327815.

51872315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51872315 - 2⁶ = 51872251 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (4292190).

Almost surely, 2^51872315 is an apocalyptic number.

51872315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51872315 is a deficient number, since it is larger than the sum of its proper divisors (16802725).

51872315 is a wasteful number, since it uses less digits than its factorization.

51872315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10702.

The product of its digits is 8400, while the sum is 32.

The square root of 51872315 is about 7202.2437476109. The cubic root of 51872315 is about 372.9453616417.

The spelling of 51872315 in words is "fifty-one million, eight hundred seventy-two thousand, three hundred fifteen".