26528813 has 2 divisors, whose sum is σ = 26528814. Its totient is φ = 26528812.

The previous prime is 26528797. The next prime is 26528849. The reversal of 26528813 is 31882562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25532809 + 996004 = 5053^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 26528813 - 2⁴ = 26528797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26528213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13264406 + 13264407.

It is an arithmetic number, because the mean of its divisors is an integer number (13264407).

Almost surely, 2^26528813 is an apocalyptic number.

It is an amenable number.

26528813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26528813 is an equidigital number, since it uses as much as digits as its factorization.

26528813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 26528813 is about 5150.6128761537. The cubic root of 26528813 is about 298.2446117028.

The spelling of 26528813 in words is "twenty-six million, five hundred twenty-eight thousand, eight hundred thirteen".