55505550055 has 8 divisors (see below), whose sum is σ = 69502601952. Its totient is φ = 42473812128.

The previous prime is 55505550053. The next prime is 55505550119. The reversal of 55505550055 is 55005550555.

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

It is a cyclic number.

It is not a de Polignac number, because 55505550055 - 2¹ = 55505550053 is a prime.

It is a super-3 number, since 3×55505550055³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505550053) 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, 241328364 + ... + 241328593.

It is an arithmetic number, because the mean of its divisors is an integer number (8687825244).

Almost surely, 2^55505550055 is an apocalyptic number.

55505550055 is a deficient number, since it is larger than the sum of its proper divisors (13997051897).

55505550055 is a wasteful number, since it uses less digits than its factorization.

55505550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482656985.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55505550055 in words is "fifty-five billion, five hundred five million, five hundred fifty thousand, fifty-five".