50392899621 has 24 divisors (see below), whose sum is σ = 77081246424. Its totient is φ = 31615073280.

The previous prime is 50392899611. The next prime is 50392899629. The reversal of 50392899621 is 12699829305.

It is a happy number.

50392899621 is a `hidden beast` number, since 5 + 0 + 3 + 9 + 2 + 8 + 9 + 9 + 621 = 666.

50392899621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 888874596 + 49504025025 = 29814^2 + 222495^2 .

It is not a de Polignac number, because 50392899621 - 2¹⁰ = 50392898597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50392899629) 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, 1605801 + ... + 1636881.

It is an arithmetic number, because the mean of its divisors is an integer number (3211718601).

Almost surely, 2^50392899621 is an apocalyptic number.

50392899621 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50392899621 is a deficient number, since it is larger than the sum of its proper divisors (26688346803).

50392899621 is a wasteful number, since it uses less digits than its factorization.

50392899621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41701 (or 41698 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 50392899621 in words is "fifty billion, three hundred ninety-two million, eight hundred ninety-nine thousand, six hundred twenty-one".