63372524221 has 2 divisors, whose sum is σ = 63372524222. Its totient is φ = 63372524220.

The previous prime is 63372524203. The next prime is 63372524261. The reversal of 63372524221 is 12242527336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63372524121 + 100 = 251739^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 63372524221 - 2⁷ = 63372524093 is a prime.

It is a super-2 number, since 2×63372524221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63372524261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31686262110 + 31686262111.

It is an arithmetic number, because the mean of its divisors is an integer number (31686262111).

Almost surely, 2^63372524221 is an apocalyptic number.

It is an amenable number.

63372524221 is a deficient number, since it is larger than the sum of its proper divisors (1).

63372524221 is an equidigital number, since it uses as much as digits as its factorization.

63372524221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The spelling of 63372524221 in words is "sixty-three billion, three hundred seventy-two million, five hundred twenty-four thousand, two hundred twenty-one".