82490825 has 6 divisors (see below), whose sum is σ = 102288654. Its totient is φ = 65992640.

The previous prime is 82490809. The next prime is 82490833. The reversal of 82490825 is 52809428.

It can be written as a sum of positive squares in 3 ways, for example, as 6661561 + 75829264 = 2581^2 + 8708^2 .

It is not a de Polignac number, because 82490825 - 2⁴ = 82490809 is a prime.

It is a Duffinian number.

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, 1649792 + ... + 1649841.

It is an arithmetic number, because the mean of its divisors is an integer number (17048109).

Almost surely, 2^82490825 is an apocalyptic number.

It is an amenable number.

82490825 is a deficient number, since it is larger than the sum of its proper divisors (19797829).

82490825 is a wasteful number, since it uses less digits than its factorization.

82490825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299643 (or 3299638 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 82490825 is about 9082.4459811220. The cubic root of 82490825 is about 435.3132459923.

The spelling of 82490825 in words is "eighty-two million, four hundred ninety thousand, eight hundred twenty-five".