26455565 has 8 divisors (see below), whose sum is σ = 32182008. Its totient is φ = 20874240.

The previous prime is 26455547. The next prime is 26455567. The reversal of 26455565 is 56555462.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2111209 + 24344356 = 1453^2 + 4934^2 .

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

It is not a de Polignac number, because 26455565 - 2²⁰ = 25406989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26455567) 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 7 ways as a sum of consecutive naturals, for example, 35876 + ... + 36605.

It is an arithmetic number, because the mean of its divisors is an integer number (4022751).

Almost surely, 2^26455565 is an apocalyptic number.

It is an amenable number.

26455565 is a deficient number, since it is larger than the sum of its proper divisors (5726443).

26455565 is an equidigital number, since it uses as much as digits as its factorization.

26455565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72559.

The product of its digits is 180000, while the sum is 38.

The square root of 26455565 is about 5143.4973510249. The cubic root of 26455565 is about 297.9698669289.

The spelling of 26455565 in words is "twenty-six million, four hundred fifty-five thousand, five hundred sixty-five".