5554321555 has 4 divisors (see below), whose sum is σ = 6665185872. Its totient is φ = 4443457240.

The previous prime is 5554321519. The next prime is 5554321561. The reversal of 5554321555 is 5551234555.

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

It is not a de Polignac number, because 5554321555 - 2²³ = 5545932947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555432151 + ... + 555432160.

It is an arithmetic number, because the mean of its divisors is an integer number (1666296468).

Almost surely, 2^5554321555 is an apocalyptic number.

5554321555 is a deficient number, since it is larger than the sum of its proper divisors (1110864317).

5554321555 is a wasteful number, since it uses less digits than its factorization.

5554321555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110864316.

The product of its digits is 375000, while the sum is 40.

The square root of 5554321555 is about 74527.3208628889. The cubic root of 5554321555 is about 1770.9664734677.

The spelling of 5554321555 in words is "five billion, five hundred fifty-four million, three hundred twenty-one thousand, five hundred fifty-five".