50575617761 has 4 divisors (see below), whose sum is σ = 53237492400. Its totient is φ = 47913743124.

The previous prime is 50575617749. The next prime is 50575617779. The reversal of 50575617761 is 16771657505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50575617761 - 2¹⁸ = 50575355617 is a prime.

It is a super-2 number, since 2×50575617761² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50575617061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330937291 + ... + 1330937328.

It is an arithmetic number, because the mean of its divisors is an integer number (13309373100).

Almost surely, 2^50575617761 is an apocalyptic number.

It is an amenable number.

50575617761 is a deficient number, since it is larger than the sum of its proper divisors (2661874639).

50575617761 is a wasteful number, since it uses less digits than its factorization.

50575617761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661874638.

The product of its (nonzero) digits is 1543500, while the sum is 50.

The spelling of 50575617761 in words is "fifty billion, five hundred seventy-five million, six hundred seventeen thousand, seven hundred sixty-one".