63546641 has 2 divisors, whose sum is σ = 63546642. Its totient is φ = 63546640.

The previous prime is 63546617. The next prime is 63546661. The reversal of 63546641 is 14664536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58967041 + 4579600 = 7679^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 63546641 - 2⁶ = 63546577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63546661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31773320 + 31773321.

It is an arithmetic number, because the mean of its divisors is an integer number (31773321).

Almost surely, 2^63546641 is an apocalyptic number.

It is an amenable number.

63546641 is a deficient number, since it is larger than the sum of its proper divisors (1).

63546641 is an equidigital number, since it uses as much as digits as its factorization.

63546641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 63546641 is about 7971.6147046881. The cubic root of 63546641 is about 399.0532630742.

The spelling of 63546641 in words is "sixty-three million, five hundred forty-six thousand, six hundred forty-one".