499975656 has 64 divisors (see below), whose sum is σ = 1319068800. Its totient is φ = 157605888.

The previous prime is 499975579. The next prime is 499975667. The reversal of 499975656 is 656579994.

It is a self number, because there is not a number n which added to its sum of digits gives 499975656.

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, 44040 + ... + 54216.

It is an arithmetic number, because the mean of its divisors is an integer number (20610450).

Almost surely, 2^499975656 is an apocalyptic number.

499975656 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499975656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659534400).

499975656 is an abundant number, since it is smaller than the sum of its proper divisors (819093144).

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

499975656 is a wasteful number, since it uses less digits than its factorization.

499975656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298 (or 10294 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 60.

The square root of 499975656 is about 22360.1354199835. The cubic root of 499975656 is about 793.6876445446.

The spelling of 499975656 in words is "four hundred ninety-nine million, nine hundred seventy-five thousand, six hundred fifty-six".