55944366503 has 18 divisors (see below), whose sum is σ = 58949242632. Its totient is φ = 52992279120.

The previous prime is 55944366481. The next prime is 55944366509. The reversal of 55944366503 is 30566344955.

It is a de Polignac number, because none of the positive numbers 2^k-55944366503 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 (55944366509) 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 17 ways as a sum of consecutive naturals, for example, 169016048 + ... + 169016378.

It is an arithmetic number, because the mean of its divisors is an integer number (3274957924).

Almost surely, 2^55944366503 is an apocalyptic number.

55944366503 is a deficient number, since it is larger than the sum of its proper divisors (3004876129).

55944366503 is an frugal number, since it uses more digits than its factorization.

55944366503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 50.

The spelling of 55944366503 in words is "fifty-five billion, nine hundred forty-four million, three hundred sixty-six thousand, five hundred three".