26505545 has 24 divisors (see below), whose sum is σ = 36312192. Its totient is φ = 18418400.

The previous prime is 26505539. The next prime is 26505553. The reversal of 26505545 is 54550562.

It is not a de Polignac number, because 26505545 - 2⁴ = 26505529 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 28640 + ... + 29550.

It is an arithmetic number, because the mean of its divisors is an integer number (1513008).

Almost surely, 2^26505545 is an apocalyptic number.

It is an amenable number.

26505545 is a deficient number, since it is larger than the sum of its proper divisors (9806647).

26505545 is a wasteful number, since it uses less digits than its factorization.

26505545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 26505545 is about 5148.3536203334. The cubic root of 26505545 is about 298.1573909959.

The spelling of 26505545 in words is "twenty-six million, five hundred five thousand, five hundred forty-five".