26530563 has 8 divisors (see below), whose sum is σ = 36594000. Its totient is φ = 17077088.

The previous prime is 26530529. The next prime is 26530571. The reversal of 26530563 is 36503562.

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

It is a cyclic number.

It is not a de Polignac number, because 26530563 - 2⁸ = 26530307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26530563.

It is not an unprimeable number, because it can be changed into a prime (26530573) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 152388 + ... + 152561.

It is an arithmetic number, because the mean of its divisors is an integer number (4574250).

Almost surely, 2^26530563 is an apocalyptic number.

26530563 is a deficient number, since it is larger than the sum of its proper divisors (10063437).

26530563 is a wasteful number, since it uses less digits than its factorization.

26530563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304981.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 26530563 is about 5150.7827560479. The cubic root of 26530563 is about 298.2511695612.

The spelling of 26530563 in words is "twenty-six million, five hundred thirty thousand, five hundred sixty-three".