2585244625 has 8 divisors (see below), whose sum is σ = 3226385448. Its totient is φ = 2068195600.

The previous prime is 2585244619. The next prime is 2585244637. The reversal of 2585244625 is 5264425852.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 626651089 + 1958593536 = 25033^2 + 44256^2 .

It is not a de Polignac number, because 2585244625 - 2³ = 2585244617 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10340854 + ... + 10341103.

It is an arithmetic number, because the mean of its divisors is an integer number (403298181).

Almost surely, 2^2585244625 is an apocalyptic number.

2585244625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2585244625 is a deficient number, since it is larger than the sum of its proper divisors (641140823).

2585244625 is an equidigital number, since it uses as much as digits as its factorization.

2585244625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20681972 (or 20681962 counting only the distinct ones).

The product of its digits is 768000, while the sum is 43.

The square root of 2585244625 is about 50845.3009136538. The cubic root of 2585244625 is about 1372.4626926509.

The spelling of 2585244625 in words is "two billion, five hundred eighty-five million, two hundred forty-four thousand, six hundred twenty-five".