55575657555 has 24 divisors (see below), whose sum is σ = 97739672016. Its totient is φ = 26945772480.

The previous prime is 55575657547. The next prime is 55575657587.

55575657555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55575657555 - 2³ = 55575657547 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15308284 + ... + 15311913.

It is an arithmetic number, because the mean of its divisors is an integer number (4072486334).

Almost surely, 2^55575657555 is an apocalyptic number.

55575657555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55575657555 is a deficient number, since it is larger than the sum of its proper divisors (42164014461).

55575657555 is a wasteful number, since it uses less digits than its factorization.

55575657555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30620227 (or 30620216 counting only the distinct ones).

The product of its digits is 114843750, while the sum is 60.

The spelling of 55575657555 in words is "fifty-five billion, five hundred seventy-five million, six hundred fifty-seven thousand, five hundred fifty-five".