50919613 has 2 divisors, whose sum is σ = 50919614. Its totient is φ = 50919612.

The previous prime is 50919599. The next prime is 50919619. The reversal of 50919613 is 31691905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39917124 + 11002489 = 6318^2 + 3317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50919613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50919619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25459806 + 25459807.

It is an arithmetic number, because the mean of its divisors is an integer number (25459807).

Almost surely, 2^50919613 is an apocalyptic number.

It is an amenable number.

50919613 is a deficient number, since it is larger than the sum of its proper divisors (1).

50919613 is an equidigital number, since it uses as much as digits as its factorization.

50919613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 50919613 is about 7135.7979932170. The cubic root of 50919613 is about 370.6480316263.

The spelling of 50919613 in words is "fifty million, nine hundred nineteen thousand, six hundred thirteen".