2522647649 has 2 divisors, whose sum is σ = 2522647650. Its totient is φ = 2522647648.

The previous prime is 2522647627. The next prime is 2522647691. The reversal of 2522647649 is 9467462252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2319385600 + 203262049 = 48160^2 + 14257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2522647649 is a prime.

It is a super-2 number, since 2×2522647649² = 12727502322010454402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2522647249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261323824 + 1261323825.

It is an arithmetic number, because the mean of its divisors is an integer number (1261323825).

Almost surely, 2^2522647649 is an apocalyptic number.

It is an amenable number.

2522647649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2522647649 is an equidigital number, since it uses as much as digits as its factorization.

2522647649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The square root of 2522647649 is about 50225.9658841918. The cubic root of 2522647649 is about 1361.2948396521.

The spelling of 2522647649 in words is "two billion, five hundred twenty-two million, six hundred forty-seven thousand, six hundred forty-nine".