27540497 has 2 divisors, whose sum is σ = 27540498. Its totient is φ = 27540496.

The previous prime is 27540467. The next prime is 27540553. The reversal of 27540497 is 79404572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 1336336 = 5119^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 27540497 - 2²⁰ = 26491921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27540497.

It is not a weakly prime, because it can be changed into another prime (27540467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13770248 + 13770249.

It is an arithmetic number, because the mean of its divisors is an integer number (13770249).

Almost surely, 2^27540497 is an apocalyptic number.

It is an amenable number.

27540497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27540497 is an equidigital number, since it uses as much as digits as its factorization.

27540497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 27540497 is about 5247.9040578120. The cubic root of 27540497 is about 301.9886294565.

The spelling of 27540497 in words is "twenty-seven million, five hundred forty thousand, four hundred ninety-seven".