499791425 has 18 divisors (see below), whose sum is σ = 720925398. Its totient is φ = 342713280.

The previous prime is 499791407. The next prime is 499791437. The reversal of 499791425 is 524197994.

It can be written as a sum of positive squares in 3 ways, for example, as 1787569 + 498003856 = 1337^2 + 22316^2 .

It is not a de Polignac number, because 499791425 - 2⁸ = 499791169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 202772 + ... + 205221.

It is an arithmetic number, because the mean of its divisors is an integer number (40051411).

Almost surely, 2^499791425 is an apocalyptic number.

It is an amenable number.

499791425 is a deficient number, since it is larger than the sum of its proper divisors (221133973).

499791425 is a wasteful number, since it uses less digits than its factorization.

499791425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408017 (or 408005 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 499791425 is about 22356.0154097281. The cubic root of 499791425 is about 793.5901465763.

The spelling of 499791425 in words is "four hundred ninety-nine million, seven hundred ninety-one thousand, four hundred twenty-five".