50198999 has 2 divisors, whose sum is σ = 50199000. Its totient is φ = 50198998.

The previous prime is 50198987. The next prime is 50199053. The reversal of 50198999 is 99989105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50198999 - 2⁴ = 50198983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50198959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25099499 + 25099500.

It is an arithmetic number, because the mean of its divisors is an integer number (25099500).

Almost surely, 2^50198999 is an apocalyptic number.

50198999 is a deficient number, since it is larger than the sum of its proper divisors (1).

50198999 is an equidigital number, since it uses as much as digits as its factorization.

50198999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 50.

The square root of 50198999 is about 7085.1251929659. The cubic root of 50198999 is about 368.8912486173.

The spelling of 50198999 in words is "fifty million, one hundred ninety-eight thousand, nine hundred ninety-nine".