50588721 has 6 divisors (see below), whose sum is σ = 73072610. Its totient is φ = 33725808.

The previous prime is 50588717. The next prime is 50588723. The reversal of 50588721 is 12788505.

50588721 is a `hidden beast` number, since 5 + 0 + 588 + 72 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48108096 + 2480625 = 6936^2 + 1575^2 .

It is not a de Polignac number, because 50588721 - 2² = 50588717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50588723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2810476 + ... + 2810493.

Almost surely, 2^50588721 is an apocalyptic number.

It is an amenable number.

50588721 is a deficient number, since it is larger than the sum of its proper divisors (22483889).

50588721 is a wasteful number, since it uses less digits than its factorization.

50588721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620975 (or 5620972 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 50588721 is about 7112.5748502213. The cubic root of 50588721 is about 369.8434229137.

Subtracting from 50588721 its product of nonzero digits (22400), we obtain a square (50566321 = 7111²).

The spelling of 50588721 in words is "fifty million, five hundred eighty-eight thousand, seven hundred twenty-one".