26256213 has 6 divisors (see below), whose sum is σ = 37925654. Its totient is φ = 17504136.

The previous prime is 26256149. The next prime is 26256229. The reversal of 26256213 is 31265262.

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 8892324 = 4167^2 + 2982^2 .

It is not a de Polignac number, because 26256213 - 2⁶ = 26256149 is a prime.

It is a super-2 number, since 2×26256213² = 1378777442202738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26254213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1458670 + ... + 1458687.

Almost surely, 2^26256213 is an apocalyptic number.

It is an amenable number.

26256213 is a deficient number, since it is larger than the sum of its proper divisors (11669441).

26256213 is a wasteful number, since it uses less digits than its factorization.

26256213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917363 (or 2917360 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 26256213 is about 5124.0816738221. The cubic root of 26256213 is about 297.2195431454.

The spelling of 26256213 in words is "twenty-six million, two hundred fifty-six thousand, two hundred thirteen".