63563231 has 2 divisors, whose sum is σ = 63563232. Its totient is φ = 63563230.

The previous prime is 63563207. The next prime is 63563261. The reversal of 63563231 is 13236536.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63563231 - 2⁶ = 63563167 is a prime.

It is a super-2 number, since 2×63563231² = 8080568670318722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63563194 and 63563203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63563261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31781615 + 31781616.

It is an arithmetic number, because the mean of its divisors is an integer number (31781616).

Almost surely, 2^63563231 is an apocalyptic number.

63563231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63563231 is an equidigital number, since it uses as much as digits as its factorization.

63563231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 63563231 is about 7972.6552038828. The cubic root of 63563231 is about 399.0879867433.

Adding to 63563231 its reverse (13236536), we get a palindrome (76799767).

The spelling of 63563231 in words is "sixty-three million, five hundred sixty-three thousand, two hundred thirty-one".