63456013 has 2 divisors, whose sum is σ = 63456014. Its totient is φ = 63456012.

The previous prime is 63455993. The next prime is 63456017. The reversal of 63456013 is 31065436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48191364 + 15264649 = 6942^2 + 3907^2 .

It is a cyclic number.

It is not a de Polignac number, because 63456013 - 2⁵ = 63455981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63456017) 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, 31728006 + 31728007.

It is an arithmetic number, because the mean of its divisors is an integer number (31728007).

Almost surely, 2^63456013 is an apocalyptic number.

It is an amenable number.

63456013 is a deficient number, since it is larger than the sum of its proper divisors (1).

63456013 is an equidigital number, since it uses as much as digits as its factorization.

63456013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 63456013 is about 7965.9282572717. The cubic root of 63456013 is about 398.8634675434.

The spelling of 63456013 in words is "sixty-three million, four hundred fifty-six thousand, thirteen".