27528013 has 2 divisors, whose sum is σ = 27528014. Its totient is φ = 27528012.

The previous prime is 27528001. The next prime is 27528071. The reversal of 27528013 is 31082572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26440164 + 1087849 = 5142^2 + 1043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27528013 is a prime.

It is equal to p_1713871 and since 27528013 and 1713871 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27528313) 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 as a sum of consecutive naturals, namely, 13764006 + 13764007.

It is an arithmetic number, because the mean of its divisors is an integer number (13764007).

Almost surely, 2^27528013 is an apocalyptic number.

It is an amenable number.

27528013 is a deficient number, since it is larger than the sum of its proper divisors (1).

27528013 is an equidigital number, since it uses as much as digits as its factorization.

27528013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 27528013 is about 5246.7144957583. The cubic root of 27528013 is about 301.9429924704.

The spelling of 27528013 in words is "twenty-seven million, five hundred twenty-eight thousand, thirteen".