26340563 has 4 divisors (see below), whose sum is σ = 26541768. Its totient is φ = 26139360.

The previous prime is 26340551. The next prime is 26340569. The reversal of 26340563 is 36504362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26340563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26340569) 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, 100406 + ... + 100667.

It is an arithmetic number, because the mean of its divisors is an integer number (6635442).

Almost surely, 2^26340563 is an apocalyptic number.

26340563 is a deficient number, since it is larger than the sum of its proper divisors (201205).

26340563 is a wasteful number, since it uses less digits than its factorization.

26340563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201204.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 26340563 is about 5132.3058170768. The cubic root of 26340563 is about 297.5374827428.

The spelling of 26340563 in words is "twenty-six million, three hundred forty thousand, five hundred sixty-three".