499625865 has 48 divisors (see below), whose sum is σ = 885643200. Its totient is φ = 260482176.

The previous prime is 499625831. The next prime is 499625873. The reversal of 499625865 is 568526994.

It is a happy number.

499625865 is a `hidden beast` number, since 4 + 9 + 9 + 625 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 499625865 - 2¹⁰ = 499624841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 602271 + ... + 603099.

It is an arithmetic number, because the mean of its divisors is an integer number (18450900).

Almost surely, 2^499625865 is an apocalyptic number.

499625865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

499625865 is a deficient number, since it is larger than the sum of its proper divisors (386017335).

499625865 is a wasteful number, since it uses less digits than its factorization.

499625865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1123 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 499625865 is about 22352.3122964941. The cubic root of 499625865 is about 793.5025091550.

The spelling of 499625865 in words is "four hundred ninety-nine million, six hundred twenty-five thousand, eight hundred sixty-five".