499825 has 6 divisors (see below), whose sum is σ = 619814. Its totient is φ = 399840.

The previous prime is 499819. The next prime is 499853. The reversal of 499825 is 528994.

It can be written as a sum of positive squares in 3 ways, for example, as 42849 + 456976 = 207^2 + 676^2 .

It is not a de Polignac number, because 499825 - 2¹³ = 491633 is a prime.

It is a Duffinian number.

499825 is a lucky number.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9972 + ... + 10021.

2⁴⁹⁹⁸²⁵ is an apocalyptic number.

It is an amenable number.

499825 is a deficient number, since it is larger than the sum of its proper divisors (119989).

499825 is a wasteful number, since it uses less digits than its factorization.

499825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20003 (or 19998 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 499825 is about 706.9830266704. The cubic root of 499825 is about 79.3607916784.

The spelling of 499825 in words is "four hundred ninety-nine thousand, eight hundred twenty-five".