26556983 has 2 divisors, whose sum is σ = 26556984. Its totient is φ = 26556982.

The previous prime is 26556967. The next prime is 26556989. The reversal of 26556983 is 38965562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26556983 - 2⁴ = 26556967 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26556989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13278491 + 13278492.

It is an arithmetic number, because the mean of its divisors is an integer number (13278492).

Almost surely, 2^26556983 is an apocalyptic number.

26556983 is a deficient number, since it is larger than the sum of its proper divisors (1).

26556983 is an equidigital number, since it uses as much as digits as its factorization.

26556983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 26556983 is about 5153.3467766103. The cubic root of 26556983 is about 298.3501394636.

The spelling of 26556983 in words is "twenty-six million, five hundred fifty-six thousand, nine hundred eighty-three".