499999558 has 16 divisors (see below), whose sum is σ = 774798336. Its totient is φ = 241746120.

The previous prime is 499999547. The next prime is 499999613. The reversal of 499999558 is 855999994.

It is a junction number, because it is equal to n+sod(n) for n = 499999493 and 499999502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108285 + ... + 112807.

It is an arithmetic number, because the mean of its divisors is an integer number (48424896).

Almost surely, 2^499999558 is an apocalyptic number.

499999558 is a deficient number, since it is larger than the sum of its proper divisors (274798778).

499999558 is a wasteful number, since it uses less digits than its factorization.

499999558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339.

The product of its digits is 47239200, while the sum is 67.

The square root of 499999558 is about 22360.6698915753. The cubic root of 499999558 is about 793.7002921069.

The spelling of 499999558 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred fifty-eight".