27252761 has 2 divisors, whose sum is σ = 27252762. Its totient is φ = 27252760.

The previous prime is 27252737. The next prime is 27252763. The reversal of 27252761 is 16725272.

27252761 is nontrivially palindromic in base 7.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 1038361 = 5120^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 27252761 - 2¹⁰ = 27251737 is a prime.

Together with 27252763, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27252763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13626380 + 13626381.

It is an arithmetic number, because the mean of its divisors is an integer number (13626381).

Almost surely, 2^27252761 is an apocalyptic number.

It is an amenable number.

27252761 is a deficient number, since it is larger than the sum of its proper divisors (1).

27252761 is an equidigital number, since it uses as much as digits as its factorization.

27252761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 32.

The square root of 27252761 is about 5220.4177035942. The cubic root of 27252761 is about 300.9332456831.

The spelling of 27252761 in words is "twenty-seven million, two hundred fifty-two thousand, seven hundred sixty-one".