26281357 has 2 divisors, whose sum is σ = 26281358. Its totient is φ = 26281356.

The previous prime is 26281271. The next prime is 26281393. The reversal of 26281357 is 75318262.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22033636 + 4247721 = 4694^2 + 2061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26281357 is a prime.

It is a super-2 number, since 2×26281357² = 1381419451522898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26261357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13140678 + 13140679.

It is an arithmetic number, because the mean of its divisors is an integer number (13140679).

Almost surely, 2^26281357 is an apocalyptic number.

It is an amenable number.

26281357 is a deficient number, since it is larger than the sum of its proper divisors (1).

26281357 is an equidigital number, since it uses as much as digits as its factorization.

26281357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 26281357 is about 5126.5345995126. The cubic root of 26281357 is about 297.3143893175.

The spelling of 26281357 in words is "twenty-six million, two hundred eighty-one thousand, three hundred fifty-seven".