25756564 has 24 divisors (see below), whose sum is σ = 48746880. Its totient is φ = 11861376.

The previous prime is 25756543. The next prime is 25756583. The reversal of 25756564 is 46565752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^25756564 is an apocalyptic number.

It is an amenable number.

25756564 is a deficient number, since it is larger than the sum of its proper divisors (22990316).

25756564 is a wasteful number, since it uses less digits than its factorization.

25756564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8125 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 25756564 is about 5075.0925114721. The cubic root of 25756564 is about 295.3221186961.

The spelling of 25756564 in words is "twenty-five million, seven hundred fifty-six thousand, five hundred sixty-four".