50511975407 has 16 divisors (see below), whose sum is σ = 54793791360. Its totient is φ = 46382166528.

The previous prime is 50511975377. The next prime is 50511975413. The reversal of 50511975407 is 70457911505.

It is a cyclic number.

It is not a de Polignac number, because 50511975407 - 2¹⁶ = 50511909871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50511975607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153569 + ... + 352997.

It is an arithmetic number, because the mean of its divisors is an integer number (3424611960).

Almost surely, 2^50511975407 is an apocalyptic number.

50511975407 is a deficient number, since it is larger than the sum of its proper divisors (4281815953).

50511975407 is a wasteful number, since it uses less digits than its factorization.

50511975407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199810.

The product of its (nonzero) digits is 220500, while the sum is 44.

The spelling of 50511975407 in words is "fifty billion, five hundred eleven million, nine hundred seventy-five thousand, four hundred seven".