25002565 has 32 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 16257024.

The previous prime is 25002557. The next prime is 25002599. The reversal of 25002565 is 56520052.

It is not a de Polignac number, because 25002565 - 2³ = 25002557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55461 + ... + 55909.

It is an arithmetic number, because the mean of its divisors is an integer number (1128600).

Almost surely, 2^25002565 is an apocalyptic number.

It is an amenable number.

25002565 is a deficient number, since it is larger than the sum of its proper divisors (11112635).

25002565 is a wasteful number, since it uses less digits than its factorization.

25002565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25002565 is about 5000.2564934211. The cubic root of 25002565 is about 292.4117736200.

The spelling of 25002565 in words is "twenty-five million, two thousand, five hundred sixty-five".