51000005006 has 16 divisors (see below), whose sum is σ = 80034545664. Its totient is φ = 24327613464.

The previous prime is 51000004999. The next prime is 51000005033. The reversal of 51000005006 is 60050000015.

It is a super-2 number, since 2×51000005006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429766 + ... + 1465001.

It is an arithmetic number, because the mean of its divisors is an integer number (5002159104).

Almost surely, 2^51000005006 is an apocalyptic number.

51000005006 is a deficient number, since it is larger than the sum of its proper divisors (29034540658).

51000005006 is a wasteful number, since it uses less digits than its factorization.

51000005006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895175.

The product of its (nonzero) digits is 150, while the sum is 17.

The spelling of 51000005006 in words is "fifty-one billion, five thousand, six".