26426261 has 2 divisors, whose sum is σ = 26426262. Its totient is φ = 26426260.

The previous prime is 26426249. The next prime is 26426297. The reversal of 26426261 is 16262462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13645636 + 12780625 = 3694^2 + 3575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26426261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26426201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13213130 + 13213131.

It is an arithmetic number, because the mean of its divisors is an integer number (13213131).

Almost surely, 2^26426261 is an apocalyptic number.

It is an amenable number.

26426261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26426261 is an equidigital number, since it uses as much as digits as its factorization.

26426261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 26426261 is about 5140.6479163623. The cubic root of 26426261 is about 297.8598089895.

The spelling of 26426261 in words is "twenty-six million, four hundred twenty-six thousand, two hundred sixty-one".