27507013 has 4 divisors (see below), whose sum is σ = 28394368. Its totient is φ = 26619660.

The previous prime is 27506981. The next prime is 27507031. The reversal of 27507013 is 31070572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27507013 - 2⁵ = 27506981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27507083) 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 3 ways as a sum of consecutive naturals, for example, 443631 + ... + 443692.

It is an arithmetic number, because the mean of its divisors is an integer number (7098592).

Almost surely, 2^27507013 is an apocalyptic number.

It is an amenable number.

27507013 is a deficient number, since it is larger than the sum of its proper divisors (887355).

27507013 is an equidigital number, since it uses as much as digits as its factorization.

27507013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887354.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 27507013 is about 5244.7128615397. The cubic root of 27507013 is about 301.8661929341.

Adding to 27507013 its reverse (31070572), we get a palindrome (58577585).

The spelling of 27507013 in words is "twenty-seven million, five hundred seven thousand, thirteen".