27552013 has 4 divisors (see below), whose sum is σ = 28296700. Its totient is φ = 26807328.

The previous prime is 27551989. The next prime is 27552067. The reversal of 27552013 is 31025572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15069924 + 12482089 = 3882^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 27552013 - 2⁵ = 27551981 is a prime.

It is a super-2 number, since 2×27552013² = 1518226840704338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27555013) 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 3 ways as a sum of consecutive naturals, for example, 372288 + ... + 372361.

It is an arithmetic number, because the mean of its divisors is an integer number (7074175).

Almost surely, 2^27552013 is an apocalyptic number.

It is an amenable number.

27552013 is a deficient number, since it is larger than the sum of its proper divisors (744687).

27552013 is an equidigital number, since it uses as much as digits as its factorization.

27552013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744686.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 27552013 is about 5249.0011430747. The cubic root of 27552013 is about 302.0307155578.

Adding to 27552013 its reverse (31025572), we get a palindrome (58577585).

The spelling of 27552013 in words is "twenty-seven million, five hundred fifty-two thousand, thirteen".