504109999 has 2 divisors, whose sum is σ = 504110000. Its totient is φ = 504109998.

The previous prime is 504109997. The next prime is 504110053. The reversal of 504109999 is 999901405.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 504109999 - 2¹ = 504109997 is a prime.

Together with 504109997, 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 (504109997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252054999 + 252055000.

It is an arithmetic number, because the mean of its divisors is an integer number (252055000).

Almost surely, 2^504109999 is an apocalyptic number.

504109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

504109999 is an equidigital number, since it uses as much as digits as its factorization.

504109999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 504109999 is about 22452.3940594316. The cubic root of 504109999 is about 795.8693331765.

The spelling of 504109999 in words is "five hundred four million, one hundred nine thousand, nine hundred ninety-nine".