63332257 has 2 divisors, whose sum is σ = 63332258. Its totient is φ = 63332256.

The previous prime is 63332231. The next prime is 63332279. The reversal of 63332257 is 75223336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59737441 + 3594816 = 7729^2 + 1896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63332257 is a prime.

It is not a weakly prime, because it can be changed into another prime (63332057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31666128 + 31666129.

It is an arithmetic number, because the mean of its divisors is an integer number (31666129).

Almost surely, 2^63332257 is an apocalyptic number.

It is an amenable number.

63332257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63332257 is an equidigital number, since it uses as much as digits as its factorization.

63332257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 31.

The square root of 63332257 is about 7958.1566332914. The cubic root of 63332257 is about 398.6040023945.

The spelling of 63332257 in words is "sixty-three million, three hundred thirty-two thousand, two hundred fifty-seven".