63225562217 has 2 divisors, whose sum is σ = 63225562218. Its totient is φ = 63225562216.

The previous prime is 63225562193. The next prime is 63225562327. The reversal of 63225562217 is 71226552236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53722431961 + 9503130256 = 231781^2 + 97484^2 .

It is a cyclic number.

It is not a de Polignac number, because 63225562217 - 2²⁰ = 63224513641 is a prime.

It is not a weakly prime, because it can be changed into another prime (63225562117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31612781108 + 31612781109.

It is an arithmetic number, because the mean of its divisors is an integer number (31612781109).

Almost surely, 2^63225562217 is an apocalyptic number.

It is an amenable number.

63225562217 is a deficient number, since it is larger than the sum of its proper divisors (1).

63225562217 is an equidigital number, since it uses as much as digits as its factorization.

63225562217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The spelling of 63225562217 in words is "sixty-three billion, two hundred twenty-five million, five hundred sixty-two thousand, two hundred seventeen".