26231655 has 8 divisors (see below), whose sum is σ = 41970672. Its totient is φ = 13990208.

The previous prime is 26231641. The next prime is 26231657. The reversal of 26231655 is 55613262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26231655 - 2¹² = 26227559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26231657) 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 7 ways as a sum of consecutive naturals, for example, 874374 + ... + 874403.

It is an arithmetic number, because the mean of its divisors is an integer number (5246334).

Almost surely, 2^26231655 is an apocalyptic number.

26231655 is a deficient number, since it is larger than the sum of its proper divisors (15739017).

26231655 is a wasteful number, since it uses less digits than its factorization.

26231655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748785.

The product of its digits is 10800, while the sum is 30.

The square root of 26231655 is about 5121.6847813976. The cubic root of 26231655 is about 297.1268489655.

It can be divided in two parts, 2623 and 1655, that added together give a triangular number (4278 = T₉₂).

The spelling of 26231655 in words is "twenty-six million, two hundred thirty-one thousand, six hundred fifty-five".