25823564 has 24 divisors (see below), whose sum is σ = 49803600. Its totient is φ = 11640384.

The previous prime is 25823519. The next prime is 25823569. The reversal of 25823564 is 46532852.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25823569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3539 + ... + 8010.

It is an arithmetic number, because the mean of its divisors is an integer number (2075150).

Almost surely, 2^25823564 is an apocalyptic number.

It is an amenable number.

25823564 is a deficient number, since it is larger than the sum of its proper divisors (23980036).

25823564 is a wasteful number, since it uses less digits than its factorization.

25823564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609 (or 11607 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 25823564 is about 5081.6890892694. The cubic root of 25823564 is about 295.5779686857.

The spelling of 25823564 in words is "twenty-five million, eight hundred twenty-three thousand, five hundred sixty-four".