26553189 has 16 divisors (see below), whose sum is σ = 38370752. Its totient is φ = 16236288.

The previous prime is 26553187. The next prime is 26553193. The reversal of 26553189 is 98135562.

It is not a de Polignac number, because 26553189 - 2¹ = 26553187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26553187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4269 + ... + 8445.

It is an arithmetic number, because the mean of its divisors is an integer number (2398172).

Almost surely, 2^26553189 is an apocalyptic number.

It is an amenable number.

26553189 is a deficient number, since it is larger than the sum of its proper divisors (11817563).

26553189 is a wasteful number, since it uses less digits than its factorization.

26553189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356.

The product of its digits is 64800, while the sum is 39.

The square root of 26553189 is about 5152.9786531675. The cubic root of 26553189 is about 298.3359310934.

The spelling of 26553189 in words is "twenty-six million, five hundred fifty-three thousand, one hundred eighty-nine".