55605055503 has 12 divisors (see below), whose sum is σ = 76784788808. Its totient is φ = 35791758240.

The previous prime is 55605055487. The next prime is 55605055573. The reversal of 55605055503 is 30555050655.

It is not a de Polignac number, because 55605055503 - 2⁴ = 55605055487 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605055573) 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 11 ways as a sum of consecutive naturals, for example, 11017108 + ... + 11022153.

Almost surely, 2^55605055503 is an apocalyptic number.

55605055503 is a deficient number, since it is larger than the sum of its proper divisors (21179733305).

55605055503 is a wasteful number, since it uses less digits than its factorization.

55605055503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22039322 (or 22039293 counting only the distinct ones).

The product of its (nonzero) digits is 281250, while the sum is 39.

The spelling of 55605055503 in words is "fifty-five billion, six hundred five million, fifty-five thousand, five hundred three".