55533433555 has 4 divisors (see below), whose sum is σ = 66640120272. Its totient is φ = 44426746840.

The previous prime is 55533433531. The next prime is 55533433597.

55533433555 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-55533433555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553343351 + ... + 5553343360.

It is an arithmetic number, because the mean of its divisors is an integer number (16660030068).

Almost surely, 2^55533433555 is an apocalyptic number.

55533433555 is a deficient number, since it is larger than the sum of its proper divisors (11106686717).

55533433555 is a wasteful number, since it uses less digits than its factorization.

55533433555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106686716.

The product of its digits is 5062500, while the sum is 46.

The spelling of 55533433555 in words is "fifty-five billion, five hundred thirty-three million, four hundred thirty-three thousand, five hundred fifty-five".