26563872 has 24 divisors (see below), whose sum is σ = 69730416. Its totient is φ = 8854592.

The previous prime is 26563861. The next prime is 26563907. The reversal of 26563872 is 27836562.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 26563872.

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, 138258 + ... + 138449.

It is an arithmetic number, because the mean of its divisors is an integer number (2905434).

Almost surely, 2^26563872 is an apocalyptic number.

It is an amenable number.

26563872 is an abundant number, since it is smaller than the sum of its proper divisors (43166544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26563872 is a wasteful number, since it uses less digits than its factorization.

26563872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276720 (or 276712 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 26563872 is about 5154.0151338544. The cubic root of 26563872 is about 298.3759350195.

The spelling of 26563872 in words is "twenty-six million, five hundred sixty-three thousand, eight hundred seventy-two".