51505150111115 has 8 divisors (see below), whose sum is σ = 61830408365088. Its totient is φ = 41187967934400.

The previous prime is 51505150110977. The next prime is 51505150111139. The reversal of 51505150111115 is 51111105150515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51505150111115 - 2¹⁰ = 51505150110091 is a prime.

It is a super-3 number, since 3×51505150111115³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian 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, 2019005282 + ... + 2019030791.

It is an arithmetic number, because the mean of its divisors is an integer number (7728801045636).

Almost surely, 2^{51505150111115} is an apocalyptic number.

51505150111115 is a deficient number, since it is larger than the sum of its proper divisors (10325258253973).

51505150111115 is a wasteful number, since it uses less digits than its factorization.

51505150111115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038038629.

The product of its (nonzero) digits is 3125, while the sum is 32.

The spelling of 51505150111115 in words is "fifty-one trillion, five hundred five billion, one hundred fifty million, one hundred eleven thousand, one hundred fifteen".