500992109 has 2 divisors, whose sum is σ = 500992110. Its totient is φ = 500992108.

The previous prime is 500992061. The next prime is 500992127. The reversal of 500992109 is 901299005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343991209 + 157000900 = 18547^2 + 12530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500992109 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 (500992409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250496054 + 250496055.

It is an arithmetic number, because the mean of its divisors is an integer number (250496055).

Almost surely, 2^500992109 is an apocalyptic number.

It is an amenable number.

500992109 is a deficient number, since it is larger than the sum of its proper divisors (1).

500992109 is an equidigital number, since it uses as much as digits as its factorization.

500992109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 500992109 is about 22382.8530129651. The cubic root of 500992109 is about 794.2251374459.

The spelling of 500992109 in words is "five hundred million, nine hundred ninety-two thousand, one hundred nine".