51000600015 has 48 divisors (see below), whose sum is σ = 96130914048. Its totient is φ = 24908387328.

The previous prime is 51000600011. The next prime is 51000600037.

51000600015 is a `hidden beast` number, since 51 + 0 + 0 + 0 + 600 + 0 + 15 = 666.

51000600015 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51000600015 - 2² = 51000600011 is a prime.

It is a super-2 number, since 2×51000600015² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000600011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 872607 + ... + 929216.

It is an arithmetic number, because the mean of its divisors is an integer number (2002727376).

Almost surely, 2^51000600015 is an apocalyptic number.

51000600015 is a deficient number, since it is larger than the sum of its proper divisors (45130314033).

51000600015 is a wasteful number, since it uses less digits than its factorization.

51000600015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801888 (or 1801885 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The spelling of 51000600015 in words is "fifty-one billion, six hundred thousand, fifteen".