26745545 has 4 divisors (see below), whose sum is σ = 32094660. Its totient is φ = 21396432.

The previous prime is 26745541. The next prime is 26745547. The reversal of 26745545 is 54554762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54554762 = 2 ⋅27277381.

It can be written as a sum of positive squares in 2 ways, for example, as 18696976 + 8048569 = 4324^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 26745545 - 2² = 26745541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26745499 and 26745508.

It is not an unprimeable number, because it can be changed into a prime (26745541) 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, 2674550 + ... + 2674559.

It is an arithmetic number, because the mean of its divisors is an integer number (8023665).

Almost surely, 2^26745545 is an apocalyptic number.

It is an amenable number.

26745545 is a deficient number, since it is larger than the sum of its proper divisors (5349115).

26745545 is an equidigital number, since it uses as much as digits as its factorization.

26745545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349114.

The product of its digits is 168000, while the sum is 38.

The square root of 26745545 is about 5171.6095173553. The cubic root of 26745545 is about 299.0545979200.

The spelling of 26745545 in words is "twenty-six million, seven hundred forty-five thousand, five hundred forty-five".