26813545 has 16 divisors (see below), whose sum is σ = 36313920. Its totient is φ = 18827200.

The previous prime is 26813537. The next prime is 26813551. The reversal of 26813545 is 54531862.

It is not a de Polignac number, because 26813545 - 2³ = 26813537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26813545.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6811 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (2269620).

Almost surely, 2^26813545 is an apocalyptic number.

It is an amenable number.

26813545 is a deficient number, since it is larger than the sum of its proper divisors (9500375).

26813545 is a wasteful number, since it uses less digits than its factorization.

26813545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16856.

The product of its digits is 28800, while the sum is 34.

The square root of 26813545 is about 5178.1796994697. The cubic root of 26813545 is about 299.3078301572.

It can be divided in two parts, 2681 and 3545, that added together give a palindrome (6226).

The spelling of 26813545 in words is "twenty-six million, eight hundred thirteen thousand, five hundred forty-five".