63544291 has 2 divisors, whose sum is σ = 63544292. Its totient is φ = 63544290.

The previous prime is 63544279. The next prime is 63544333. The reversal of 63544291 is 19244536.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63544291 - 2⁵ = 63544259 is a prime.

It is not a weakly prime, because it can be changed into another prime (63544211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31772145 + 31772146.

It is an arithmetic number, because the mean of its divisors is an integer number (31772146).

Almost surely, 2^63544291 is an apocalyptic number.

63544291 is a deficient number, since it is larger than the sum of its proper divisors (1).

63544291 is an equidigital number, since it uses as much as digits as its factorization.

63544291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 63544291 is about 7971.4673053334. The cubic root of 63544291 is about 399.0483439223.

The spelling of 63544291 in words is "sixty-three million, five hundred forty-four thousand, two hundred ninety-one".