27049513 has 2 divisors, whose sum is σ = 27049514. Its totient is φ = 27049512.

The previous prime is 27049511. The next prime is 27049523. The reversal of 27049513 is 31594072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 5631129 = 4628^2 + 2373^2 .

It is a cyclic number.

It is not a de Polignac number, because 27049513 - 2¹ = 27049511 is a prime.

Together with 27049511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27049511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13524756 + 13524757.

It is an arithmetic number, because the mean of its divisors is an integer number (13524757).

Almost surely, 2^27049513 is an apocalyptic number.

It is an amenable number.

27049513 is a deficient number, since it is larger than the sum of its proper divisors (1).

27049513 is an equidigital number, since it uses as much as digits as its factorization.

27049513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 27049513 is about 5200.9146311010. The cubic root of 27049513 is about 300.1832694997.

The spelling of 27049513 in words is "twenty-seven million, forty-nine thousand, five hundred thirteen".