50431235761 has 3 divisors (see below), whose sum is σ = 50431460331. Its totient is φ = 50431011192.

The previous prime is 50431235753. The next prime is 50431235783. The reversal of 50431235761 is 16753213405.

The square root of 50431235761 is 224569.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 23679362161 + 26751873600 = 153881^2 + 163560^2 .

It is not a de Polignac number, because 50431235761 - 2³ = 50431235753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50431235761.

It is not an unprimeable number, because it can be changed into a prime (50431235711) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 112285 + ... + 336853.

It is an arithmetic number, because the mean of its divisors is an integer number (16810486777).

Almost surely, 2^50431235761 is an apocalyptic number.

50431235761 is the 224569-th square number.

50431235761 is the 112285-th centered octagonal number.

It is an amenable number.

50431235761 is a deficient number, since it is larger than the sum of its proper divisors (224570).

50431235761 is an frugal number, since it uses more digits than its factorization.

50431235761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449138 (or 224569 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 50431235761 in words is "fifty billion, four hundred thirty-one million, two hundred thirty-five thousand, seven hundred sixty-one".