51504332215 has 32 divisors (see below), whose sum is σ = 71858257920. Its totient is φ = 34706448000.

The previous prime is 51504332207. The next prime is 51504332233. The reversal of 51504332215 is 51223340515.

It is not a de Polignac number, because 51504332215 - 2³ = 51504332207 is a prime.

It is a congruent number.

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, 2446906 + ... + 2467864.

It is an arithmetic number, because the mean of its divisors is an integer number (2245570560).

Almost surely, 2^51504332215 is an apocalyptic number.

51504332215 is a deficient number, since it is larger than the sum of its proper divisors (20353925705).

51504332215 is a wasteful number, since it uses less digits than its factorization.

51504332215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22183.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 51504332215 in words is "fifty-one billion, five hundred four million, three hundred thirty-two thousand, two hundred fifteen".