50481551761 has 9 divisors (see below), whose sum is σ = 51115973961. Its totient is φ = 49854916452.

The previous prime is 50481551753. The next prime is 50481551773. The reversal of 50481551761 is 16715518405.

The square root of 50481551761 is 224681.

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

It is not a de Polignac number, because 50481551761 - 2³ = 50481551753 is a prime.

It is a super-2 number, since 2×50481551761² (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 (50481551711) 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 8 ways as a sum of consecutive naturals, for example, 18647170 + ... + 18649876.

Almost surely, 2^50481551761 is an apocalyptic number.

50481551761 is the 224681-st square number.

50481551761 is the 112341-st centered octagonal number.

It is an amenable number.

50481551761 is a deficient number, since it is larger than the sum of its proper divisors (634422200).

50481551761 is an frugal number, since it uses more digits than its factorization.

50481551761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580 (or 2790 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 43.

The spelling of 50481551761 in words is "fifty billion, four hundred eighty-one million, five hundred fifty-one thousand, seven hundred sixty-one".