499999556 has 48 divisors (see below), whose sum is σ = 1037232000. Its totient is φ = 206347008.

The previous prime is 499999547. The next prime is 499999613. The reversal of 499999556 is 655999994.

It is a junction number, because it is equal to n+sod(n) for n = 499999492 and 499999501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476120 + ... + 477168.

It is an arithmetic number, because the mean of its divisors is an integer number (21609000).

Almost surely, 2^499999556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499999556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518616000).

499999556 is an abundant number, since it is smaller than the sum of its proper divisors (537232444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499999556 is a wasteful number, since it uses less digits than its factorization.

499999556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1674 counting only the distinct ones).

The product of its digits is 35429400, while the sum is 65.

The square root of 499999556 is about 22360.6698468539. The cubic root of 499999556 is about 793.7002910487.

The spelling of 499999556 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred fifty-six".