5551442 has 16 divisors (see below), whose sum is σ = 9034200. Its totient is φ = 2543232.

The previous prime is 5551433. The next prime is 5551453. The reversal of 5551442 is 2441555.

It can be written as a sum of positive squares in 4 ways, for example, as 3644281 + 1907161 = 1909^2 + 1381^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 3158 + ... + 4590.

Almost surely, 2^5551442 is an apocalyptic number.

5551442 is a deficient number, since it is larger than the sum of its proper divisors (3482758).

5551442 is a wasteful number, since it uses less digits than its factorization.

5551442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597.

The product of its digits is 4000, while the sum is 26.

The square root of 5551442 is about 2356.1498254568. The cubic root of 5551442 is about 177.0660376864.

Adding to 5551442 its reverse (2441555), we get a palindrome (7992997).

It can be divided in two parts, 5551 and 442, that multiplied together give a palindrome (2453542).

The spelling of 5551442 in words is "five million, five hundred fifty-one thousand, four hundred forty-two".