499985001 has 16 divisors (see below), whose sum is σ = 749044800. Its totient is φ = 329576544.

The previous prime is 499984997. The next prime is 499985023. The reversal of 499985001 is 100589994.

It is not a de Polignac number, because 499985001 - 2² = 499984997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499985501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101631 + ... + 106436.

It is an arithmetic number, because the mean of its divisors is an integer number (46815300).

Almost surely, 2^499985001 is an apocalyptic number.

It is an amenable number.

499985001 is a deficient number, since it is larger than the sum of its proper divisors (249059799).

499985001 is a wasteful number, since it uses less digits than its factorization.

499985001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208165 (or 208159 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 499985001 is about 22360.3443846467. The cubic root of 499985001 is about 793.6925894286.

It can be divided in two parts, 4999 and 85001, that added together give a square (90000 = 300²).

The spelling of 499985001 in words is "four hundred ninety-nine million, nine hundred eighty-five thousand, one".