26263213 has 2 divisors, whose sum is σ = 26263214. Its totient is φ = 26263212.

The previous prime is 26263207. The next prime is 26263253. The reversal of 26263213 is 31236262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26183689 + 79524 = 5117^2 + 282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26263213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26263253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13131606 + 13131607.

It is an arithmetic number, because the mean of its divisors is an integer number (13131607).

Almost surely, 2^26263213 is an apocalyptic number.

It is an amenable number.

26263213 is a deficient number, since it is larger than the sum of its proper divisors (1).

26263213 is an equidigital number, since it uses as much as digits as its factorization.

26263213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 26263213 is about 5124.7646775242. The cubic root of 26263213 is about 297.2459540618.

Adding to 26263213 its reverse (31236262), we get a palindrome (57499475).

The spelling of 26263213 in words is "twenty-six million, two hundred sixty-three thousand, two hundred thirteen".