26233561 has 4 divisors (see below), whose sum is σ = 26549712. Its totient is φ = 25917412.

The previous prime is 26233549. The next prime is 26233607. The reversal of 26233561 is 16533262.

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 a cyclic number.

It is not a de Polignac number, because 26233561 - 2¹³ = 26225369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26233531) 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 3 ways as a sum of consecutive naturals, for example, 157951 + ... + 158116.

It is an arithmetic number, because the mean of its divisors is an integer number (6637428).

Almost surely, 2^26233561 is an apocalyptic number.

It is an amenable number.

26233561 is a deficient number, since it is larger than the sum of its proper divisors (316151).

26233561 is an equidigital number, since it uses as much as digits as its factorization.

26233561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316150.

The product of its digits is 6480, while the sum is 28.

The square root of 26233561 is about 5121.8708496017. The cubic root of 26233561 is about 297.1340452335.

The spelling of 26233561 in words is "twenty-six million, two hundred thirty-three thousand, five hundred sixty-one".