51000010005615 has 64 divisors (see below), whose sum is σ = 89947467187200. Its totient is φ = 24469408512000.

The previous prime is 51000010005611. The next prime is 51000010005641. The reversal of 51000010005615 is 51650001000015.

It is not a de Polignac number, because 51000010005615 - 2² = 51000010005611 is a prime.

It is a super-2 number, since 2×51000010005615² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000010005611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30499191 + ... + 32127879.

It is an arithmetic number, because the mean of its divisors is an integer number (1405429174800).

Almost surely, 2^{51000010005615} is an apocalyptic number.

51000010005615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51000010005615 is a deficient number, since it is larger than the sum of its proper divisors (38947457181585).

51000010005615 is a wasteful number, since it uses less digits than its factorization.

51000010005615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630688.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 51000010005615 in words is "fifty-one trillion, ten million, five thousand, six hundred fifteen".