26481331 has 8 divisors (see below), whose sum is σ = 26777520. Its totient is φ = 26187168.

The previous prime is 26481313. The next prime is 26481361. The reversal of 26481331 is 13318462.

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 26481331 - 2²¹ = 24384179 is a prime.

It is a super-2 number, since 2×26481331² = 1402521783063122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26481331.

It is not an unprimeable number, because it can be changed into a prime (26481311) 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 7 ways as a sum of consecutive naturals, for example, 44820 + ... + 45406.

It is an arithmetic number, because the mean of its divisors is an integer number (3347190).

Almost surely, 2^26481331 is an apocalyptic number.

26481331 is a deficient number, since it is larger than the sum of its proper divisors (296189).

26481331 is a wasteful number, since it uses less digits than its factorization.

26481331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its digits is 3456, while the sum is 28.

The square root of 26481331 is about 5146.0014574425. The cubic root of 26481331 is about 298.0665699664.

Adding to 26481331 its reverse (13318462), we get a palindrome (39799793).

The spelling of 26481331 in words is "twenty-six million, four hundred eighty-one thousand, three hundred thirty-one".