51255299255215 has 16 divisors (see below), whose sum is σ = 67221871930656. Its totient is φ = 37207678147200.

The previous prime is 51255299255191. The next prime is 51255299255227.

51255299255215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51255299255215 - 2⁵ = 51255299255183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51255299255215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861259092 + ... + 861318601.

It is an arithmetic number, because the mean of its divisors is an integer number (4201366995666).

Almost surely, 2^{51255299255215} is an apocalyptic number.

51255299255215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51255299255215 is a deficient number, since it is larger than the sum of its proper divisors (15966572675441).

51255299255215 is a wasteful number, since it uses less digits than its factorization.

51255299255215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722578250.

The product of its digits is 20250000, while the sum is 58.

The spelling of 51255299255215 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred ninety-nine million, two hundred fifty-five thousand, two hundred fifteen".