50221737 has 12 divisors (see below), whose sum is σ = 73537204. Its totient is φ = 33022080.

The previous prime is 50221733. The next prime is 50221739. The reversal of 50221737 is 73712205.

It can be written as a sum of positive squares in 2 ways, for example, as 8696601 + 41525136 = 2949^2 + 6444^2 .

It is not a de Polignac number, because 50221737 - 2² = 50221733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50221737.

It is not an unprimeable number, because it can be changed into a prime (50221733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37564 + ... + 38877.

Almost surely, 2^50221737 is an apocalyptic number.

It is an amenable number.

50221737 is a deficient number, since it is larger than the sum of its proper divisors (23315467).

50221737 is a wasteful number, since it uses less digits than its factorization.

50221737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76520 (or 76517 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 50221737 is about 7086.7296406735. The cubic root of 50221737 is about 368.9469375305.

The spelling of 50221737 in words is "fifty million, two hundred twenty-one thousand, seven hundred thirty-seven".