25827664 has 10 divisors (see below), whose sum is σ = 50041130. Its totient is φ = 12913824.

The previous prime is 25827653. The next prime is 25827667. The reversal of 25827664 is 46672852.

It can be written as a sum of positive squares in only one way, i.e., 25200400 + 627264 = 5020^2 + 792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25827667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807099 + ... + 807130.

It is an arithmetic number, because the mean of its divisors is an integer number (5004113).

Almost surely, 2^25827664 is an apocalyptic number.

It is an amenable number.

25827664 is a deficient number, since it is larger than the sum of its proper divisors (24213466).

25827664 is a wasteful number, since it uses less digits than its factorization.

25827664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614237 (or 1614231 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 25827664 is about 5082.0924824328. The cubic root of 25827664 is about 295.5936108016.

The spelling of 25827664 in words is "twenty-five million, eight hundred twenty-seven thousand, six hundred sixty-four".