26564530 has 8 divisors (see below), whose sum is σ = 47816172. Its totient is φ = 10625808.

The previous prime is 26564521. The next prime is 26564537. The reversal of 26564530 is 3546562.

It can be written as a sum of positive squares in 2 ways, for example, as 26224641 + 339889 = 5121^2 + 583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 26564492 and 26564501.

It is not an unprimeable number, because it can be changed into a prime (26564537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328217 + ... + 1328236.

Almost surely, 2^26564530 is an apocalyptic number.

26564530 is a deficient number, since it is larger than the sum of its proper divisors (21251642).

26564530 is a wasteful number, since it uses less digits than its factorization.

26564530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656460.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 26564530 is about 5154.0789671871. The cubic root of 26564530 is about 298.3783986380.

The spelling of 26564530 in words is "twenty-six million, five hundred sixty-four thousand, five hundred thirty".