5551554 has 32 divisors (see below), whose sum is σ = 12082176. Its totient is φ = 1693440.

The previous prime is 5551531. The next prime is 5551583. The reversal of 5551554 is 4551555.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 3039 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (377568).

Almost surely, 2^5551554 is an apocalyptic number.

5551554 is an abundant number, since it is smaller than the sum of its proper divisors (6530622).

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

5551554 is a wasteful number, since it uses less digits than its factorization.

5551554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its digits is 12500, while the sum is 30.

The square root of 5551554 is about 2356.1735929256. The cubic root of 5551554 is about 177.0672284439.

Subtracting from 5551554 its reverse (4551555), we obtain a palindrome (999999).

It can be divided in two parts, 5551 and 554, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 5551554 in words is "five million, five hundred fifty-one thousand, five hundred fifty-four".