50161562621 has 4 divisors (see below), whose sum is σ = 50200660992. Its totient is φ = 50122464252.

The previous prime is 50161562609. The next prime is 50161562663. The reversal of 50161562621 is 12626516105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50161562621 - 2⁶ = 50161562557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50161562021) 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, 19547261 + ... + 19549826.

It is an arithmetic number, because the mean of its divisors is an integer number (12550165248).

Almost surely, 2^50161562621 is an apocalyptic number.

It is an amenable number.

50161562621 is a deficient number, since it is larger than the sum of its proper divisors (39098371).

50161562621 is a wasteful number, since it uses less digits than its factorization.

50161562621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39098370.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 50161562621 in words is "fifty billion, one hundred sixty-one million, five hundred sixty-two thousand, six hundred twenty-one".