50513406621 has 8 divisors (see below), whose sum is σ = 67354905600. Its totient is φ = 33673756032.

The previous prime is 50513406607. The next prime is 50513406623. The reversal of 50513406621 is 12660431505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50513406621 - 2²¹ = 50511309469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50513406623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397021 + ... + 508578.

It is an arithmetic number, because the mean of its divisors is an integer number (8419363200).

Almost surely, 2^50513406621 is an apocalyptic number.

It is an amenable number.

50513406621 is a deficient number, since it is larger than the sum of its proper divisors (16841498979).

50513406621 is a wasteful number, since it uses less digits than its factorization.

50513406621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924195.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 50513406621 in words is "fifty billion, five hundred thirteen million, four hundred six thousand, six hundred twenty-one".