499686825 has 48 divisors (see below), whose sum is σ = 913709376. Its totient is φ = 238924800.

The previous prime is 499686821. The next prime is 499686841. The reversal of 499686825 is 528686994.

It is not a de Polignac number, because 499686825 - 2² = 499686821 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499686821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56077 + ... + 64373.

It is an arithmetic number, because the mean of its divisors is an integer number (19035612).

Almost surely, 2^499686825 is an apocalyptic number.

It is an amenable number.

499686825 is a deficient number, since it is larger than the sum of its proper divisors (414022551).

499686825 is a wasteful number, since it uses less digits than its factorization.

499686825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394 (or 8389 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The square root of 499686825 is about 22353.6758722139. The cubic root of 499686825 is about 793.5347799328.

The spelling of 499686825 in words is "four hundred ninety-nine million, six hundred eighty-six thousand, eight hundred twenty-five".