27452522521 has 2 divisors, whose sum is σ = 27452522522. Its totient is φ = 27452522520.

The previous prime is 27452522497. The next prime is 27452522563. The reversal of 27452522521 is 12522525472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20891522521 + 6561000000 = 144539^2 + 81000^2 .

It is a cyclic number.

It is not a de Polignac number, because 27452522521 - 2¹³ = 27452514329 is a prime.

It is not a weakly prime, because it can be changed into another prime (27452522921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13726261260 + 13726261261.

It is an arithmetic number, because the mean of its divisors is an integer number (13726261261).

Almost surely, 2^27452522521 is an apocalyptic number.

It is an amenable number.

27452522521 is a deficient number, since it is larger than the sum of its proper divisors (1).

27452522521 is an equidigital number, since it uses as much as digits as its factorization.

27452522521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112000, while the sum is 37.

The spelling of 27452522521 in words is "twenty-seven billion, four hundred fifty-two million, five hundred twenty-two thousand, five hundred twenty-one".