50561407775 has 24 divisors (see below), whose sum is σ = 66308851200. Its totient is φ = 38138536800.

The previous prime is 50561407739. The next prime is 50561407777. The reversal of 50561407775 is 57770416505.

It is not a de Polignac number, because 50561407775 - 2¹⁸ = 50561145631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50561407777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152015 + ... + 352464.

It is an arithmetic number, because the mean of its divisors is an integer number (2762868800).

Almost surely, 2^50561407775 is an apocalyptic number.

50561407775 is a deficient number, since it is larger than the sum of its proper divisors (15747443425).

50561407775 is a wasteful number, since it uses less digits than its factorization.

50561407775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504719 (or 504714 counting only the distinct ones).

The product of its (nonzero) digits is 1029000, while the sum is 47.

The spelling of 50561407775 in words is "fifty billion, five hundred sixty-one million, four hundred seven thousand, seven hundred seventy-five".