2579825 has 12 divisors (see below), whose sum is σ = 3286620. Its totient is φ = 2007360.

The previous prime is 2579821. The next prime is 2579827. The reversal of 2579825 is 5289752.

It can be written as a sum of positive squares in 6 ways, for example, as 58081 + 2521744 = 241^2 + 1588^2 .

It is not a de Polignac number, because 2579825 - 2² = 2579821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (273885).

2^2579825 is an apocalyptic number.

2579825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2579825 is a deficient number, since it is larger than the sum of its proper divisors (706795).

2579825 is a wasteful number, since it uses less digits than its factorization.

2579825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836 (or 2831 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 2579825 is about 1606.1833643766. The cubic root of 2579825 is about 137.1502959238.

The spelling of 2579825 in words is "two million, five hundred seventy-nine thousand, eight hundred twenty-five".