505307899 has 2 divisors, whose sum is σ = 505307900. Its totient is φ = 505307898.

The previous prime is 505307849. The next prime is 505307911. The reversal of 505307899 is 998703505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505307899 - 2¹¹ = 505305851 is a prime.

It is not a weakly prime, because it can be changed into another prime (505307809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252653949 + 252653950.

It is an arithmetic number, because the mean of its divisors is an integer number (252653950).

Almost surely, 2^505307899 is an apocalyptic number.

505307899 is a deficient number, since it is larger than the sum of its proper divisors (1).

505307899 is an equidigital number, since it uses as much as digits as its factorization.

505307899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 505307899 is about 22479.0546731841. The cubic root of 505307899 is about 796.4992338702.

The spelling of 505307899 in words is "five hundred five million, three hundred seven thousand, eight hundred ninety-nine".