2585172425 has 24 divisors (see below), whose sum is σ = 3591561792. Its totient is φ = 1829304000.

The previous prime is 2585172413. The next prime is 2585172451. The reversal of 2585172425 is 5242715852.

It is not a de Polignac number, because 2585172425 - 2²⁰ = 2584123849 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116861 + ... + 137210.

It is an arithmetic number, because the mean of its divisors is an integer number (149648408).

Almost surely, 2^2585172425 is an apocalyptic number.

2585172425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2585172425 is a deficient number, since it is larger than the sum of its proper divisors (1006389367).

2585172425 is a wasteful number, since it uses less digits than its factorization.

2585172425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254129 (or 254124 counting only the distinct ones).

The product of its digits is 224000, while the sum is 41.

The square root of 2585172425 is about 50844.5909119151. The cubic root of 2585172425 is about 1372.4499159453.

The spelling of 2585172425 in words is "two billion, five hundred eighty-five million, one hundred seventy-two thousand, four hundred twenty-five".