27229513 has 2 divisors, whose sum is σ = 27229514. Its totient is φ = 27229512.

The previous prime is 27229487. The next prime is 27229519. The reversal of 27229513 is 31592272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 727609 = 5148^2 + 853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27229513 is a prime.

It is not a weakly prime, because it can be changed into another prime (27229519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13614756 + 13614757.

It is an arithmetic number, because the mean of its divisors is an integer number (13614757).

Almost surely, 2^27229513 is an apocalyptic number.

It is an amenable number.

27229513 is a deficient number, since it is larger than the sum of its proper divisors (1).

27229513 is an equidigital number, since it uses as much as digits as its factorization.

27229513 is an evil number, because the sum of its binary digits is even.

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

The square root of 27229513 is about 5218.1905867839. The cubic root of 27229513 is about 300.8476508525.

The spelling of 27229513 in words is "twenty-seven million, two hundred twenty-nine thousand, five hundred thirteen".