50442517999 has 2 divisors, whose sum is σ = 50442518000. Its totient is φ = 50442517998.

The previous prime is 50442517991. The next prime is 50442518029. The reversal of 50442517999 is 99971524405.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50442517999 - 2³ = 50442517991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50442517991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25221258999 + 25221259000.

It is an arithmetic number, because the mean of its divisors is an integer number (25221259000).

Almost surely, 2^50442517999 is an apocalyptic number.

50442517999 is a deficient number, since it is larger than the sum of its proper divisors (1).

50442517999 is an equidigital number, since it uses as much as digits as its factorization.

50442517999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 50442517999 in words is "fifty billion, four hundred forty-two million, five hundred seventeen thousand, nine hundred ninety-nine".