63155112503 has 12 divisors (see below), whose sum is σ = 73524575880. Its totient is φ = 54089903952.

The previous prime is 63155112499. The next prime is 63155112539. The reversal of 63155112503 is 30521155136.

It is not a de Polignac number, because 63155112503 - 2² = 63155112499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63155112503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63155112563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450176 + ... + 573557.

It is an arithmetic number, because the mean of its divisors is an integer number (6127047990).

Almost surely, 2^63155112503 is an apocalyptic number.

63155112503 is a deficient number, since it is larger than the sum of its proper divisors (10369463377).

63155112503 is a wasteful number, since it uses less digits than its factorization.

63155112503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025006 (or 1024999 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 63155112503 its reverse (30521155136), we get a palindrome (93676267639).

The spelling of 63155112503 in words is "sixty-three billion, one hundred fifty-five million, one hundred twelve thousand, five hundred three".