25584765 has 16 divisors (see below), whose sum is σ = 42256896. Its totient is φ = 13204800.

The previous prime is 25584761. The next prime is 25584787. The reversal of 25584765 is 56748552.

It is not a de Polignac number, because 25584765 - 2² = 25584761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25584761) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27046 + ... + 27975.

It is an arithmetic number, because the mean of its divisors is an integer number (2641056).

Almost surely, 2^25584765 is an apocalyptic number.

It is an amenable number.

25584765 is a deficient number, since it is larger than the sum of its proper divisors (16672131).

25584765 is a wasteful number, since it uses less digits than its factorization.

25584765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55060.

The product of its digits is 336000, while the sum is 42.

The square root of 25584765 is about 5058.1384915797. The cubic root of 25584765 is about 294.6640434772.

The spelling of 25584765 in words is "twenty-five million, five hundred eighty-four thousand, seven hundred sixty-five".