2252640647 has 2 divisors, whose sum is σ = 2252640648. Its totient is φ = 2252640646.

The previous prime is 2252640587. The next prime is 2252640653. The reversal of 2252640647 is 7460462522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2252640647 - 2⁶ = 2252640583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2252640647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2252640847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126320323 + 1126320324.

It is an arithmetic number, because the mean of its divisors is an integer number (1126320324).

Almost surely, 2^2252640647 is an apocalyptic number.

2252640647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2252640647 is an equidigital number, since it uses as much as digits as its factorization.

2252640647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 2252640647 is about 47461.9916038086. The cubic root of 2252640647 is about 1310.8831228330.

The spelling of 2252640647 in words is "two billion, two hundred fifty-two million, six hundred forty thousand, six hundred forty-seven".