26568431 has 4 divisors (see below), whose sum is σ = 26635752. Its totient is φ = 26501112.

The previous prime is 26568401. The next prime is 26568449. The reversal of 26568431 is 13486562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13486562 = 2 ⋅6743281.

It is a cyclic number.

It is not a de Polignac number, because 26568431 - 2²² = 22374127 is a prime.

It is a super-2 number, since 2×26568431² = 1411763051603522, 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 = 26568391 and 26568400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26568401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33065 + ... + 33858.

It is an arithmetic number, because the mean of its divisors is an integer number (6658938).

Almost surely, 2^26568431 is an apocalyptic number.

26568431 is a deficient number, since it is larger than the sum of its proper divisors (67321).

26568431 is an equidigital number, since it uses as much as digits as its factorization.

26568431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67320.

The product of its digits is 34560, while the sum is 35.

The square root of 26568431 is about 5154.4573914235. The cubic root of 26568431 is about 298.3930035412.

The spelling of 26568431 in words is "twenty-six million, five hundred sixty-eight thousand, four hundred thirty-one".