55547474555 has 8 divisors (see below), whose sum is σ = 66658587072. Its totient is φ = 44436901248.

The previous prime is 55547474509. The next prime is 55547474579.

55547474555 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 not a de Polignac number, because 55547474555 - 2³² = 51252507259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55547474555.

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, 144419 + ... + 363251.

It is an arithmetic number, because the mean of its divisors is an integer number (8332323384).

Almost surely, 2^55547474555 is an apocalyptic number.

55547474555 is a deficient number, since it is larger than the sum of its proper divisors (11111112517).

55547474555 is a wasteful number, since it uses less digits than its factorization.

55547474555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269605.

The product of its digits is 49000000, while the sum is 56.

The spelling of 55547474555 in words is "fifty-five billion, five hundred forty-seven million, four hundred seventy-four thousand, five hundred fifty-five".