26256631 has 8 divisors (see below), whose sum is σ = 26564400. Its totient is φ = 25950912.

The previous prime is 26256611. The next prime is 26256661. The reversal of 26256631 is 13665262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26256631 - 2⁵ = 26256599 is a prime.

It is a super-2 number, since 2×26256631² = 1378821342940322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26256593 and 26256602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26256611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46356 + ... + 46918.

It is an arithmetic number, because the mean of its divisors is an integer number (3320550).

Almost surely, 2^26256631 is an apocalyptic number.

26256631 is a deficient number, since it is larger than the sum of its proper divisors (307769).

26256631 is a wasteful number, since it uses less digits than its factorization.

26256631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 12960, while the sum is 31.

The square root of 26256631 is about 5124.1224614562. The cubic root of 26256631 is about 297.2211203862.

The spelling of 26256631 in words is "twenty-six million, two hundred fifty-six thousand, six hundred thirty-one".