26556913 has 2 divisors, whose sum is σ = 26556914. Its totient is φ = 26556912.

The previous prime is 26556883. The next prime is 26556917. The reversal of 26556913 is 31965562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 9193024 = 4167^2 + 3032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26556913 is a prime.

It is not a weakly prime, because it can be changed into another prime (26556917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13278456 + 13278457.

It is an arithmetic number, because the mean of its divisors is an integer number (13278457).

Almost surely, 2^26556913 is an apocalyptic number.

It is an amenable number.

26556913 is a deficient number, since it is larger than the sum of its proper divisors (1).

26556913 is an equidigital number, since it uses as much as digits as its factorization.

26556913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 37.

The square root of 26556913 is about 5153.3399849030. The cubic root of 26556913 is about 298.3498773288.

The spelling of 26556913 in words is "twenty-six million, five hundred fifty-six thousand, nine hundred thirteen".