55555255555 has 8 divisors (see below), whose sum is σ = 66670785792. Its totient is φ = 44441218368.

The previous prime is 55555255531. The next prime is 55555255649.

55555255555 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55555255555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289699 + ... + 441628.

It is an arithmetic number, because the mean of its divisors is an integer number (8333848224).

Almost surely, 2^55555255555 is an apocalyptic number.

55555255555 is a deficient number, since it is larger than the sum of its proper divisors (11115530237).

55555255555 is a wasteful number, since it uses less digits than its factorization.

55555255555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746525.

The product of its digits is 19531250, while the sum is 52.

The spelling of 55555255555 in words is "fifty-five billion, five hundred fifty-five million, two hundred fifty-five thousand, five hundred fifty-five".