25002765 has 24 divisors (see below), whose sum is σ = 45620640. Its totient is φ = 12632544.

The previous prime is 25002749. The next prime is 25002779. The reversal of 25002765 is 56720052.

It is not a de Polignac number, because 25002765 - 2⁴ = 25002749 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13767 + ... + 15476.

It is an arithmetic number, because the mean of its divisors is an integer number (1900860).

Almost surely, 2^25002765 is an apocalyptic number.

It is an amenable number.

25002765 is a deficient number, since it is larger than the sum of its proper divisors (20617875).

25002765 is a wasteful number, since it uses less digits than its factorization.

25002765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29273 (or 29270 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 25002765 is about 5000.2764923552. The cubic root of 25002765 is about 292.4125533026.

The spelling of 25002765 in words is "twenty-five million, two thousand, seven hundred sixty-five".