50217312015 has 96 divisors (see below), whose sum is σ = 97412689920. Its totient is φ = 24671039616.

The previous prime is 50217311953. The next prime is 50217312017. The reversal of 50217312015 is 51021371205.

It is not a de Polignac number, because 50217312015 - 2⁷ = 50217311887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 50217312015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50217312017) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8257746 + ... + 8263824.

It is an arithmetic number, because the mean of its divisors is an integer number (1014715520).

Almost surely, 2^50217312015 is an apocalyptic number.

50217312015 is a deficient number, since it is larger than the sum of its proper divisors (47195377905).

50217312015 is a wasteful number, since it uses less digits than its factorization.

50217312015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6635 (or 6623 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The spelling of 50217312015 in words is "fifty billion, two hundred seventeen million, three hundred twelve thousand, fifteen".