55203005772503 has 8 divisors (see below), whose sum is σ = 58689988090848. Its totient is φ = 51806594423584.

The previous prime is 55203005772451. The next prime is 55203005772533. The reversal of 55203005772503 is 30527750030255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55203005772503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203005772533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22642741100 + ... + 22642743537.

It is an arithmetic number, because the mean of its divisors is an integer number (7336248511356).

Almost surely, 2^{55203005772503} is an apocalyptic number.

55203005772503 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55203005772503 is a deficient number, since it is larger than the sum of its proper divisors (3486982318345).

55203005772503 is a wasteful number, since it uses less digits than its factorization.

55203005772503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45285484713.

The product of its (nonzero) digits is 1102500, while the sum is 44.

The spelling of 55203005772503 in words is "fifty-five trillion, two hundred three billion, five million, seven hundred seventy-two thousand, five hundred three".