27542645 has 16 divisors (see below), whose sum is σ = 35707392. Its totient is φ = 20274240.

The previous prime is 27542633. The next prime is 27542651. The reversal of 27542645 is 54624572.

It is not a de Polignac number, because 27542645 - 2⁴ = 27542629 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 31484 + ... + 32346.

It is an arithmetic number, because the mean of its divisors is an integer number (2231712).

Almost surely, 2^27542645 is an apocalyptic number.

It is an amenable number.

27542645 is a deficient number, since it is larger than the sum of its proper divisors (8164747).

27542645 is a wasteful number, since it uses less digits than its factorization.

27542645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its digits is 67200, while the sum is 35.

The square root of 27542645 is about 5248.1087069534. The cubic root of 27542645 is about 301.9964803765.

The spelling of 27542645 in words is "twenty-seven million, five hundred forty-two thousand, six hundred forty-five".