26350813 has 2 divisors, whose sum is σ = 26350814. Its totient is φ = 26350812.

The previous prime is 26350721. The next prime is 26350817. The reversal of 26350813 is 31805362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25938649 + 412164 = 5093^2 + 642^2 .

It is a cyclic number.

It is not a de Polignac number, because 26350813 - 2¹³ = 26342621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26350817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13175406 + 13175407.

It is an arithmetic number, because the mean of its divisors is an integer number (13175407).

Almost surely, 2^26350813 is an apocalyptic number.

It is an amenable number.

26350813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26350813 is an equidigital number, since it uses as much as digits as its factorization.

26350813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 26350813 is about 5133.3042964547. The cubic root of 26350813 is about 297.5760716889.

It can be divided in two parts, 263 and 50813, that added together give a square (51076 = 226²).

The spelling of 26350813 in words is "twenty-six million, three hundred fifty thousand, eight hundred thirteen".