50818919 has 2 divisors, whose sum is σ = 50818920. Its totient is φ = 50818918.

The previous prime is 50818913. The next prime is 50818921. The reversal of 50818919 is 91981805.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50818919 - 2¹² = 50814823 is a prime.

It is a super-2 number, since 2×50818919² = 5165125056657122, which contains 22 as substring.

Together with 50818921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50818913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25409459 + 25409460.

It is an arithmetic number, because the mean of its divisors is an integer number (25409460).

Almost surely, 2^50818919 is an apocalyptic number.

50818919 is a deficient number, since it is larger than the sum of its proper divisors (1).

50818919 is an equidigital number, since it uses as much as digits as its factorization.

50818919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 50818919 is about 7128.7389487903. The cubic root of 50818919 is about 370.4035504443.

The spelling of 50818919 in words is "fifty million, eight hundred eighteen thousand, nine hundred nineteen".