25572765 has 32 divisors (see below), whose sum is σ = 43908480. Its totient is φ = 12669696.

The previous prime is 25572749. The next prime is 25572769. The reversal of 25572765 is 56727552.

It is not a de Polignac number, because 25572765 - 2⁴ = 25572749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572769) 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 31 ways as a sum of consecutive naturals, for example, 14259 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140).

Almost surely, 2^25572765 is an apocalyptic number.

It is an amenable number.

25572765 is a deficient number, since it is larger than the sum of its proper divisors (18335715).

25572765 is a wasteful number, since it uses less digits than its factorization.

25572765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773.

The product of its digits is 147000, while the sum is 39.

The square root of 25572765 is about 5056.9521453144. The cubic root of 25572765 is about 294.6179675998.

The spelling of 25572765 in words is "twenty-five million, five hundred seventy-two thousand, seven hundred sixty-five".