27545045 has 16 divisors (see below), whose sum is σ = 36365760. Its totient is φ = 20027920.

The previous prime is 27545039. The next prime is 27545047. The reversal of 27545045 is 54054572.

It is not a de Polignac number, because 27545045 - 2⁴ = 27545029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27545047) 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 15 ways as a sum of consecutive naturals, for example, 4586 + ... + 8724.

It is an arithmetic number, because the mean of its divisors is an integer number (2272860).

Almost surely, 2^27545045 is an apocalyptic number.

It is an amenable number.

27545045 is a deficient number, since it is larger than the sum of its proper divisors (8820715).

27545045 is an equidigital number, since it uses as much as digits as its factorization.

27545045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177 (or 4155 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 27545045 is about 5248.3373557728. The cubic root of 27545045 is about 302.0052518713.

The spelling of 27545045 in words is "twenty-seven million, five hundred forty-five thousand, forty-five".