26528261 has 2 divisors, whose sum is σ = 26528262. Its totient is φ = 26528260.

The previous prime is 26528231. The next prime is 26528287. The reversal of 26528261 is 16282562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21215236 + 5313025 = 4606^2 + 2305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26528261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26528231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13264130 + 13264131.

It is an arithmetic number, because the mean of its divisors is an integer number (13264131).

Almost surely, 2^26528261 is an apocalyptic number.

It is an amenable number.

26528261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26528261 is an equidigital number, since it uses as much as digits as its factorization.

26528261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 26528261 is about 5150.5592900189. The cubic root of 26528261 is about 298.2425431071.

The spelling of 26528261 in words is "twenty-six million, five hundred twenty-eight thousand, two hundred sixty-one".