499990523 has 2 divisors, whose sum is σ = 499990524. Its totient is φ = 499990522.

The previous prime is 499990487. The next prime is 499990571. The reversal of 499990523 is 325099994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499990523 - 2²² = 495796219 is a prime.

It is not a weakly prime, because it can be changed into another prime (499990223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249995261 + 249995262.

It is an arithmetic number, because the mean of its divisors is an integer number (249995262).

Almost surely, 2^499990523 is an apocalyptic number.

499990523 is a deficient number, since it is larger than the sum of its proper divisors (1).

499990523 is an equidigital number, since it uses as much as digits as its factorization.

499990523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 50.

The square root of 499990523 is about 22360.4678618315. The cubic root of 499990523 is about 793.6955113525.

The spelling of 499990523 in words is "four hundred ninety-nine million, nine hundred ninety thousand, five hundred twenty-three".