2565065025 has 36 divisors (see below), whose sum is σ = 4701178768. Its totient is φ = 1336214880.

The previous prime is 2565064967. The next prime is 2565065059. The reversal of 2565065025 is 5205605652.

It is not a de Polignac number, because 2565065025 - 2⁷ = 2565064897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 122887 + ... + 142236.

Almost surely, 2^2565065025 is an apocalyptic number.

2565065025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2565065025 is a deficient number, since it is larger than the sum of its proper divisors (2136113743).

2565065025 is a wasteful number, since it uses less digits than its factorization.

2565065025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265182 (or 265174 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 2565065025 is about 50646.4710024302. The cubic root of 2565065025 is about 1368.8823578768.

The spelling of 2565065025 in words is "two billion, five hundred sixty-five million, sixty-five thousand, twenty-five".