50023519009 has 2 divisors, whose sum is σ = 50023519010. Its totient is φ = 50023519008.

The previous prime is 50023518971. The next prime is 50023519043. The reversal of 50023519009 is 90091532005.

It is a happy number.

It is an a-pointer prime, because the next prime (50023519043) can be obtained adding 50023519009 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49964766784 + 58752225 = 223528^2 + 7665^2 .

It is a cyclic number.

It is not a de Polignac number, because 50023519009 - 2³⁵ = 15663780641 is a prime.

It is not a weakly prime, because it can be changed into another prime (50023519069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25011759504 + 25011759505.

It is an arithmetic number, because the mean of its divisors is an integer number (25011759505).

Almost surely, 2^50023519009 is an apocalyptic number.

It is an amenable number.

50023519009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50023519009 is an equidigital number, since it uses as much as digits as its factorization.

50023519009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 34.

The spelling of 50023519009 in words is "fifty billion, twenty-three million, five hundred nineteen thousand, nine".