5545554551 has 8 divisors (see below), whose sum is σ = 5738372400. Its totient is φ = 5352842880.

The previous prime is 5545554527. The next prime is 5545554607. The reversal of 5545554551 is 1554555455.

It is a happy number.

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-5545554551 is a prime.

It is a super-3 number, since 3×5545554551³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545554251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88196 + ... + 137366.

It is an arithmetic number, because the mean of its divisors is an integer number (717296550).

Almost surely, 2^5545554551 is an apocalyptic number.

5545554551 is a deficient number, since it is larger than the sum of its proper divisors (192817849).

5545554551 is a wasteful number, since it uses less digits than its factorization.

5545554551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53089.

The product of its digits is 1250000, while the sum is 44.

The square root of 5545554551 is about 74468.4802517146. The cubic root of 5545554551 is about 1770.0342116234.

The spelling of 5545554551 in words is "five billion, five hundred forty-five million, five hundred fifty-four thousand, five hundred fifty-one".