2527267661 has 2 divisors, whose sum is σ = 2527267662. Its totient is φ = 2527267660.

The previous prime is 2527267657. The next prime is 2527267663. The reversal of 2527267661 is 1667627252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1460004100 + 1067263561 = 38210^2 + 32669^2 .

It is a cyclic number.

It is not a de Polignac number, because 2527267661 - 2² = 2527267657 is a prime.

Together with 2527267663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2527267663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263633830 + 1263633831.

It is an arithmetic number, because the mean of its divisors is an integer number (1263633831).

Almost surely, 2^2527267661 is an apocalyptic number.

It is an amenable number.

2527267661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2527267661 is an equidigital number, since it uses as much as digits as its factorization.

2527267661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 2527267661 is about 50271.9371120708. The cubic root of 2527267661 is about 1362.1253642828.

The spelling of 2527267661 in words is "two billion, five hundred twenty-seven million, two hundred sixty-seven thousand, six hundred sixty-one".