26201005 has 4 divisors (see below), whose sum is σ = 31441212. Its totient is φ = 20960800.

The previous prime is 26201003. The next prime is 26201033. The reversal of 26201005 is 50010262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50010262 = 2 ⋅25005131.

It can be written as a sum of positive squares in 2 ways, for example, as 18550249 + 7650756 = 4307^2 + 2766^2 .

It is not a de Polignac number, because 26201005 - 2¹ = 26201003 is a prime.

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 26201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26201003) 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, 2620096 + ... + 2620105.

It is an arithmetic number, because the mean of its divisors is an integer number (7860303).

Almost surely, 2^26201005 is an apocalyptic number.

It is an amenable number.

26201005 is a deficient number, since it is larger than the sum of its proper divisors (5240207).

26201005 is an equidigital number, since it uses as much as digits as its factorization.

26201005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240206.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 26201005 is about 5118.6917273850. The cubic root of 26201005 is about 297.0110793329.

Adding to 26201005 its reverse (50010262), we get a palindrome (76211267).

The spelling of 26201005 in words is "twenty-six million, two hundred one thousand, five".