5555123110503 has 64 divisors (see below), whose sum is σ = 8746615296000. Its totient is φ = 3477334468608.

The previous prime is 5555123110417. The next prime is 5555123110553. The reversal of 5555123110503 is 3050113215555.

5555123110503 is a `hidden beast` number, since 5 + 5 + 5 + 512 + 31 + 105 + 0 + 3 = 666.

It is not a de Polignac number, because 5555123110503 - 2¹³ = 5555123102311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555123110553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8159943 + ... + 8814471.

It is an arithmetic number, because the mean of its divisors is an integer number (136665864000).

Almost surely, 2^{5555123110503} is an apocalyptic number.

5555123110503 is a deficient number, since it is larger than the sum of its proper divisors (3191492185497).

5555123110503 is a wasteful number, since it uses less digits than its factorization.

5555123110503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654813 (or 654807 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 5555123110503 in words is "five trillion, five hundred fifty-five billion, one hundred twenty-three million, one hundred ten thousand, five hundred three".