25670164 has 12 divisors (see below), whose sum is σ = 48378484. Its totient is φ = 11847744.

The previous prime is 25670149. The next prime is 25670171. The reversal of 25670164 is 46107652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2917264 + 22752900 = 1708^2 + 4770^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246777 + ... + 246880.

Almost surely, 2^25670164 is an apocalyptic number.

It is an amenable number.

25670164 is a deficient number, since it is larger than the sum of its proper divisors (22708320).

25670164 is a wasteful number, since it uses less digits than its factorization.

25670164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493674 (or 493672 counting only the distinct ones).

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

The square root of 25670164 is about 5066.5732008923. The cubic root of 25670164 is about 294.9915309261.

The spelling of 25670164 in words is "twenty-five million, six hundred seventy thousand, one hundred sixty-four".