5051999 has 2 divisors, whose sum is σ = 5052000.
Its totient is φ = 5051998.
The previous prime is 5051989. The next prime is 5052031. The reversal of 5051999 is 9991505.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 5051999 - 220 = 4003423 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 (5051939) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525999 + 2526000.
It is an arithmetic number, because the mean of its divisors is an integer number (2526000).
Almost surely, 25051999 is an apocalyptic number.
5051999 is a deficient number, since it is larger than the sum of its proper divisors (1).
5051999 is an equidigital number, since it uses as much as digits as its factorization.
5051999 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 18225, while the sum is 38.
The square root of 5051999 is about 2247.6652330808.
The cubic root of 5051999 is about 171.5883317883.
The spelling of 5051999 in words is "five million, fifty-one thousand, nine hundred ninety-nine".