1503055503563 has 4 divisors (see below), whose sum is σ = 1503693204480. Its totient is φ = 1502417802648.

The previous prime is 1503055503553. The next prime is 1503055503569. The reversal of 1503055503563 is 3653055503051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1503055503563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1503055503563.

It is not an unprimeable number, because it can be changed into a prime (1503055503569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318846923 + ... + 318851636.

It is an arithmetic number, because the mean of its divisors is an integer number (375923301120).

Almost surely, 2^{1503055503563} is an apocalyptic number.

1503055503563 is a deficient number, since it is larger than the sum of its proper divisors (637700917).

1503055503563 is an equidigital number, since it uses as much as digits as its factorization.

1503055503563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637700916.

The product of its (nonzero) digits is 506250, while the sum is 41.

The spelling of 1503055503563 in words is "one trillion, five hundred three billion, fifty-five million, five hundred three thousand, five hundred sixty-three".