2565172 has 12 divisors (see below), whose sum is σ = 4563076. Its totient is φ = 1261440.

The previous prime is 2565161. The next prime is 2565191. The reversal of 2565172 is 2715652.

It can be written as a sum of positive squares in 2 ways, for example, as 24336 + 2540836 = 156^2 + 1594^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2565172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5013 + ... + 5500.

2^2565172 is an apocalyptic number.

It is an amenable number.

2565172 is a deficient number, since it is larger than the sum of its proper divisors (1997904).

2565172 is a wasteful number, since it uses less digits than its factorization.

2565172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10578 (or 10576 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 2565172 is about 1601.6154344911. The cubic root of 2565172 is about 136.8901387174.

The spelling of 2565172 in words is "two million, five hundred sixty-five thousand, one hundred seventy-two".