50720491 has 2 divisors, whose sum is σ = 50720492. Its totient is φ = 50720490.

The previous prime is 50720489. The next prime is 50720533. The reversal of 50720491 is 19402705.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50720491 - 2¹ = 50720489 is a prime.

Together with 50720489, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50720591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25360245 + 25360246.

It is an arithmetic number, because the mean of its divisors is an integer number (25360246).

Almost surely, 2^50720491 is an apocalyptic number.

50720491 is a deficient number, since it is larger than the sum of its proper divisors (1).

50720491 is an equidigital number, since it uses as much as digits as its factorization.

50720491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 50720491 is about 7121.8319974568. The cubic root of 50720491 is about 370.1642586967.

The spelling of 50720491 in words is "fifty million, seven hundred twenty thousand, four hundred ninety-one".