63534013 has 2 divisors, whose sum is σ = 63534014. Its totient is φ = 63534012.

The previous prime is 63534007. The next prime is 63534019. The reversal of 63534013 is 31043536.

It is a balanced prime because it is at equal distance from previous prime (63534007) and next prime (63534019).

It can be written as a sum of positive squares in only one way, i.e., 35676729 + 27857284 = 5973^2 + 5278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63534013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63534019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31767006 + 31767007.

It is an arithmetic number, because the mean of its divisors is an integer number (31767007).

Almost surely, 2^63534013 is an apocalyptic number.

It is an amenable number.

63534013 is a deficient number, since it is larger than the sum of its proper divisors (1).

63534013 is an equidigital number, since it uses as much as digits as its factorization.

63534013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 63534013 is about 7970.8226049762. The cubic root of 63534013 is about 399.0268280108.

Adding to 63534013 its reverse (31043536), we get a palindrome (94577549).

The spelling of 63534013 in words is "sixty-three million, five hundred thirty-four thousand, thirteen".