50689702621 has 4 divisors (see below), whose sum is σ = 53671449852. Its totient is φ = 47707955392.

The previous prime is 50689702579. The next prime is 50689702633. The reversal of 50689702621 is 12620798605.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27850936996 + 22838765625 = 166886^2 + 151125^2 .

It is a cyclic number.

It is not a de Polignac number, because 50689702621 - 2⁹ = 50689702109 is a prime.

It is a super-3 number, since 3×50689702621³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50680702621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490873590 + ... + 1490873623.

It is an arithmetic number, because the mean of its divisors is an integer number (13417862463).

Almost surely, 2^50689702621 is an apocalyptic number.

It is an amenable number.

50689702621 is a deficient number, since it is larger than the sum of its proper divisors (2981747231).

50689702621 is a wasteful number, since it uses less digits than its factorization.

50689702621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981747230.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 50689702621 in words is "fifty billion, six hundred eighty-nine million, seven hundred two thousand, six hundred twenty-one".