26201613 has 4 divisors (see below), whose sum is σ = 34935488. Its totient is φ = 17467740.

The previous prime is 26201599. The next prime is 26201621. The reversal of 26201613 is 31610262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26201613 - 2⁴ = 26201597 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 26201613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26201653) 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, 4366933 + ... + 4366938.

It is an arithmetic number, because the mean of its divisors is an integer number (8733872).

Almost surely, 2^26201613 is an apocalyptic number.

It is an amenable number.

26201613 is a deficient number, since it is larger than the sum of its proper divisors (8733875).

26201613 is an equidigital number, since it uses as much as digits as its factorization.

26201613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8733874.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 26201613 is about 5118.7511172160. The cubic root of 26201613 is about 297.0133767173.

Adding to 26201613 its reverse (31610262), we get a palindrome (57811875).

The spelling of 26201613 in words is "twenty-six million, two hundred one thousand, six hundred thirteen".