25622164 has 6 divisors (see below), whose sum is σ = 44838794. Its totient is φ = 12811080.

The previous prime is 25622147. The next prime is 25622173. The reversal of 25622164 is 46122652.

It can be written as a sum of positive squares in only one way, i.e., 24581764 + 1040400 = 4958^2 + 1020^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202767 + ... + 3202774.

Almost surely, 2^25622164 is an apocalyptic number.

It is an amenable number.

25622164 is a deficient number, since it is larger than the sum of its proper divisors (19216630).

25622164 is a wasteful number, since it uses less digits than its factorization.

25622164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405545 (or 6405543 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 25622164 is about 5061.8340549647. The cubic root of 25622164 is about 294.8075504339.

The spelling of 25622164 in words is "twenty-five million, six hundred twenty-two thousand, one hundred sixty-four".