63331 has 2 divisors, whose sum is σ = 63332. Its totient is φ = 63330.

The previous prime is 63317. The next prime is 63337. The reversal of 63331 is 13336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63331 - 2⁵ = 63299 is a prime.

It is a super-2 number, since 2×63331² = 8021631122, which contains 22 as substring.

It is a nialpdrome in base 10 and base 16.

It is not a weakly prime, because it can be changed into another prime (63337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31665 + 31666.

It is an arithmetic number, because the mean of its divisors is an integer number (31666).

2⁶³³³¹ is an apocalyptic number.

63331 is a deficient number, since it is larger than the sum of its proper divisors (1).

63331 is an equidigital number, since it uses as much as digits as its factorization.

63331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 16.

The square root of 63331 is about 251.6565119364. The cubic root of 63331 is about 39.8601365252.

Adding to 63331 its reverse (13336), we get a palindrome (76667).

The spelling of 63331 in words is "sixty-three thousand, three hundred thirty-one".