60563105621 has 2 divisors, whose sum is σ = 60563105622. Its totient is φ = 60563105620.

The previous prime is 60563105543. The next prime is 60563105623. The reversal of 60563105621 is 12650136506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37563866596 + 22999239025 = 193814^2 + 151655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60563105621 is a prime.

It is a Sophie Germain prime.

Together with 60563105623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60563105623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30281552810 + 30281552811.

It is an arithmetic number, because the mean of its divisors is an integer number (30281552811).

Almost surely, 2^60563105621 is an apocalyptic number.

It is an amenable number.

60563105621 is a deficient number, since it is larger than the sum of its proper divisors (1).

60563105621 is an equidigital number, since it uses as much as digits as its factorization.

60563105621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 60563105621 in words is "sixty billion, five hundred sixty-three million, one hundred five thousand, six hundred twenty-one".