27252481 has 2 divisors, whose sum is σ = 27252482. Its totient is φ = 27252480.

The previous prime is 27252473. The next prime is 27252487. The reversal of 27252481 is 18425272.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26471025 + 781456 = 5145^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 27252481 - 2³ = 27252473 is a prime.

It is a super-2 number, since 2×27252481² = 1485395441310722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27252487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13626240 + 13626241.

It is an arithmetic number, because the mean of its divisors is an integer number (13626241).

Almost surely, 2^27252481 is an apocalyptic number.

It is an amenable number.

27252481 is a deficient number, since it is larger than the sum of its proper divisors (1).

27252481 is an equidigital number, since it uses as much as digits as its factorization.

27252481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 31.

The square root of 27252481 is about 5220.3908857479. The cubic root of 27252481 is about 300.9322150646.

The spelling of 27252481 in words is "twenty-seven million, two hundred fifty-two thousand, four hundred eighty-one".