26481001 has 4 divisors (see below), whose sum is σ = 26556372. Its totient is φ = 26405632.

The previous prime is 26480989. The next prime is 26481017. The reversal of 26481001 is 10018462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 18071001 = 2900^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 26481001 - 2¹⁹ = 25956713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26481101) 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, 37156 + ... + 37861.

It is an arithmetic number, because the mean of its divisors is an integer number (6639093).

Almost surely, 2^26481001 is an apocalyptic number.

It is an amenable number.

26481001 is a deficient number, since it is larger than the sum of its proper divisors (75371).

26481001 is an equidigital number, since it uses as much as digits as its factorization.

26481001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75370.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 26481001 is about 5145.9693936128. The cubic root of 26481001 is about 298.0653318316.

Adding to 26481001 its reverse (10018462), we get a palindrome (36499463).

The spelling of 26481001 in words is "twenty-six million, four hundred eighty-one thousand, one".