55550530555 has 32 divisors (see below), whose sum is σ = 72549227520. Its totient is φ = 40588231680.

The previous prime is 55550530487. The next prime is 55550530571. The reversal of 55550530555 is 55503505555.

It is not a de Polignac number, because 55550530555 - 2²⁷ = 55416312827 is a prime.

It is a super-2 number, since 2×55550530555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5386534 + ... + 5396836.

It is an arithmetic number, because the mean of its divisors is an integer number (2267163360).

Almost surely, 2^55550530555 is an apocalyptic number.

55550530555 is a deficient number, since it is larger than the sum of its proper divisors (16998696965).

55550530555 is a wasteful number, since it uses less digits than its factorization.

55550530555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11191.

The product of its (nonzero) digits is 1171875, while the sum is 43.

The spelling of 55550530555 in words is "fifty-five billion, five hundred fifty million, five hundred thirty thousand, five hundred fifty-five".