50720591 has 2 divisors, whose sum is σ = 50720592. Its totient is φ = 50720590.

The previous prime is 50720573. The next prime is 50720617. The reversal of 50720591 is 19502705.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50720591 - 2¹⁰ = 50719567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50720561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25360295 + 25360296.

It is an arithmetic number, because the mean of its divisors is an integer number (25360296).

Almost surely, 2^50720591 is an apocalyptic number.

50720591 is a deficient number, since it is larger than the sum of its proper divisors (1).

50720591 is an equidigital number, since it uses as much as digits as its factorization.

50720591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 50720591 is about 7121.8390181188. The cubic root of 50720591 is about 370.1645019673.

The spelling of 50720591 in words is "fifty million, seven hundred twenty thousand, five hundred ninety-one".