50220891 has 40 divisors (see below), whose sum is σ = 89489664. Its totient is φ = 27442800.

The previous prime is 50220887. The next prime is 50220913. The reversal of 50220891 is 19802205.

It is not a de Polignac number, because 50220891 - 2² = 50220887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50220871) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11116 + ... + 14966.

Almost surely, 2^50220891 is an apocalyptic number.

50220891 is a deficient number, since it is larger than the sum of its proper divisors (39268773).

50220891 is a wasteful number, since it uses less digits than its factorization.

50220891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3884 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 50220891 is about 7086.6699513947. The cubic root of 50220891 is about 368.9448658454.

The spelling of 50220891 in words is "fifty million, two hundred twenty thousand, eight hundred ninety-one".