26556868 has 12 divisors (see below), whose sum is σ = 50049580. Its totient is φ = 12256992.

The previous prime is 26556853. The next prime is 26556883. The reversal of 26556868 is 86865562.

26556868 = 122² + 123² + ... + 433².

It is an interprime number because it is at equal distance from previous prime (26556853) and next prime (26556883).

It can be written as a sum of positive squares in 2 ways, for example, as 7354944 + 19201924 = 2712^2 + 4382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255303 + ... + 255406.

Almost surely, 2^26556868 is an apocalyptic number.

It is an amenable number.

26556868 is a deficient number, since it is larger than the sum of its proper divisors (23492712).

26556868 is a wasteful number, since it uses less digits than its factorization.

26556868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510726 (or 510724 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 26556868 is about 5153.3356188007. The cubic root of 26556868 is about 298.3497088133.

The spelling of 26556868 in words is "twenty-six million, five hundred fifty-six thousand, eight hundred sixty-eight".