27520493 has 32 divisors (see below), whose sum is σ = 38922240. Its totient is φ = 18740160.

The previous prime is 27520477. The next prime is 27520517. The reversal of 27520493 is 39402572.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27520493 - 2⁴ = 27520477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27520403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18296 + ... + 19742.

It is an arithmetic number, because the mean of its divisors is an integer number (1216320).

Almost surely, 2^27520493 is an apocalyptic number.

It is an amenable number.

27520493 is a deficient number, since it is larger than the sum of its proper divisors (11401747).

27520493 is a wasteful number, since it uses less digits than its factorization.

27520493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 27520493 is about 5245.9978078531. The cubic root of 27520493 is about 301.9154954126.

The spelling of 27520493 in words is "twenty-seven million, five hundred twenty thousand, four hundred ninety-three".