50611621 has 4 divisors (see below), whose sum is σ = 51688512. Its totient is φ = 49534732.

The previous prime is 50611609. The next prime is 50611637. The reversal of 50611621 is 12611605.

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 50611621 - 2⁷ = 50611493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50611592 and 50611601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50611651) 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, 538375 + ... + 538468.

It is an arithmetic number, because the mean of its divisors is an integer number (12922128).

Almost surely, 2^50611621 is an apocalyptic number.

It is an amenable number.

50611621 is a deficient number, since it is larger than the sum of its proper divisors (1076891).

50611621 is a wasteful number, since it uses less digits than its factorization.

50611621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076890.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 50611621 is about 7114.1844929690. The cubic root of 50611621 is about 369.8992201783.

The spelling of 50611621 in words is "fifty million, six hundred eleven thousand, six hundred twenty-one".