27264505 has 8 divisors (see below), whose sum is σ = 32747400. Its totient is φ = 21791616.

The previous prime is 27264493. The next prime is 27264509. The reversal of 27264505 is 50546272.

It can be written as a sum of positive squares in 4 ways, for example, as 17943696 + 9320809 = 4236^2 + 3053^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27264505 - 2⁵ = 27264473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27264509) 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 7 ways as a sum of consecutive naturals, for example, 6351 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (4093425).

Almost surely, 2^27264505 is an apocalyptic number.

It is an amenable number.

27264505 is a deficient number, since it is larger than the sum of its proper divisors (5482895).

27264505 is a wasteful number, since it uses less digits than its factorization.

27264505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 27264505 is about 5221.5423966487. The cubic root of 27264505 is about 300.9764664110.

The spelling of 27264505 in words is "twenty-seven million, two hundred sixty-four thousand, five hundred five".