25760164 has 6 divisors (see below), whose sum is σ = 45080294. Its totient is φ = 12880080.

The previous prime is 25760153. The next prime is 25760179. The reversal of 25760164 is 46106752.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20884900 + 4875264 = 4570^2 + 2208^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220017 + ... + 3220024.

Almost surely, 2^25760164 is an apocalyptic number.

It is an amenable number.

25760164 is a deficient number, since it is larger than the sum of its proper divisors (19320130).

25760164 is a wasteful number, since it uses less digits than its factorization.

25760164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440045 (or 6440043 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 25760164 is about 5075.4471724174. The cubic root of 25760164 is about 295.3358771319.

The spelling of 25760164 in words is "twenty-five million, seven hundred sixty thousand, one hundred sixty-four".