5545554 has 48 divisors (see below), whose sum is σ = 13211328. Its totient is φ = 1520064.

The previous prime is 5545543. The next prime is 5545567. The reversal of 5545554 is 4555455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35244 + ... + 35400.

It is an arithmetic number, because the mean of its divisors is an integer number (275236).

Almost surely, 2^5545554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5545554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6605664).

5545554 is an abundant number, since it is smaller than the sum of its proper divisors (7665774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5545554 is a wasteful number, since it uses less digits than its factorization.

5545554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 198 counting only the distinct ones).

The product of its digits is 50000, while the sum is 33.

The square root of 5545554 is about 2354.8999978768. The cubic root of 5545554 is about 177.0034153001.

Subtracting from 5545554 its reverse (4555455), we obtain a palindrome (990099).

The spelling of 5545554 in words is "five million, five hundred forty-five thousand, five hundred fifty-four".