555505555503 has 8 divisors (see below), whose sum is σ = 740680112128. Its totient is φ = 370334017944.

The previous prime is 555505555499. The next prime is 555505555559. The reversal of 555505555503 is 305555505555.

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

It is not a de Polignac number, because 555505555503 - 2² = 555505555499 is a prime.

It is a super-2 number, since 2×555505555503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555505555573) 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, 283375 + ... + 1091472.

It is an arithmetic number, because the mean of its divisors is an integer number (92585014016).

Almost surely, 2^555505555503 is an apocalyptic number.

555505555503 is a deficient number, since it is larger than the sum of its proper divisors (185174556625).

555505555503 is a wasteful number, since it uses less digits than its factorization.

555505555503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509533.

The product of its (nonzero) digits is 5859375, while the sum is 48.

The spelling of 555505555503 in words is "five hundred fifty-five billion, five hundred five million, five hundred fifty-five thousand, five hundred three".