63651241 has 2 divisors, whose sum is σ = 63651242. Its totient is φ = 63651240.

The previous prime is 63651227. The next prime is 63651271. The reversal of 63651241 is 14215636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 14707225 = 6996^2 + 3835^2 .

It is a cyclic number.

It is not a de Polignac number, because 63651241 - 2⁵ = 63651209 is a prime.

It is not a weakly prime, because it can be changed into another prime (63651271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31825620 + 31825621.

It is an arithmetic number, because the mean of its divisors is an integer number (31825621).

Almost surely, 2^63651241 is an apocalyptic number.

It is an amenable number.

63651241 is a deficient number, since it is larger than the sum of its proper divisors (1).

63651241 is an equidigital number, since it uses as much as digits as its factorization.

63651241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 63651241 is about 7978.1727857950. The cubic root of 63651241 is about 399.2720949391.

Adding to 63651241 its reverse (14215636), we get a palindrome (77866877).

The spelling of 63651241 in words is "sixty-three million, six hundred fifty-one thousand, two hundred forty-one".