26213601 has 4 divisors (see below), whose sum is σ = 34951472. Its totient is φ = 17475732.

The previous prime is 26213599. The next prime is 26213611. The reversal of 26213601 is 10631262.

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 26213601 - 2¹ = 26213599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26213611) 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, 4368931 + ... + 4368936.

It is an arithmetic number, because the mean of its divisors is an integer number (8737868).

Almost surely, 2^26213601 is an apocalyptic number.

It is an amenable number.

26213601 is a deficient number, since it is larger than the sum of its proper divisors (8737871).

26213601 is an equidigital number, since it uses as much as digits as its factorization.

26213601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737870.

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

The square root of 26213601 is about 5119.9219720617. The cubic root of 26213601 is about 297.0586672302.

Adding to 26213601 its reverse (10631262), we get a palindrome (36844863).

The spelling of 26213601 in words is "twenty-six million, two hundred thirteen thousand, six hundred one".