63351331 has 2 divisors, whose sum is σ = 63351332. Its totient is φ = 63351330.

The previous prime is 63351329. The next prime is 63351349. The reversal of 63351331 is 13315336.

63351331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63351331 - 2¹ = 63351329 is a prime.

It is a super-2 number, since 2×63351331² = 8026782278943122, which contains 22 as substring.

Together with 63351329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 63351296 and 63351305.

It is not a weakly prime, because it can be changed into another prime (63351311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31675665 + 31675666.

It is an arithmetic number, because the mean of its divisors is an integer number (31675666).

Almost surely, 2^63351331 is an apocalyptic number.

63351331 is a deficient number, since it is larger than the sum of its proper divisors (1).

63351331 is an equidigital number, since it uses as much as digits as its factorization.

63351331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 25.

The square root of 63351331 is about 7959.3549361742. The cubic root of 63351331 is about 398.6440147040.

Adding to 63351331 its reverse (13315336), we get a palindrome (76666667).

The spelling of 63351331 in words is "sixty-three million, three hundred fifty-one thousand, three hundred thirty-one".