63520035203 has 32 divisors (see below), whose sum is σ = 71889472512. Its totient is φ = 55794816000.

The previous prime is 63520035149. The next prime is 63520035221. The reversal of 63520035203 is 30253002536.

It is a de Polignac number, because none of the positive numbers 2^k-63520035203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63520235203) 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 in 31 ways as a sum of consecutive naturals, for example, 24898778 + ... + 24901328.

It is an arithmetic number, because the mean of its divisors is an integer number (2246546016).

Almost surely, 2^63520035203 is an apocalyptic number.

63520035203 is a deficient number, since it is larger than the sum of its proper divisors (8369437309).

63520035203 is a wasteful number, since it uses less digits than its factorization.

63520035203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 63520035203 its reverse (30253002536), we get a palindrome (93773037739).

The spelling of 63520035203 in words is "sixty-three billion, five hundred twenty million, thirty-five thousand, two hundred three".