55042804 has 12 divisors (see below), whose sum is σ = 101991204. Its totient is φ = 25902464.

The previous prime is 55042777. The next prime is 55042807. The reversal of 55042804 is 40824055.

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 17808400 = 6102^2 + 4220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55042807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404659 + ... + 404794.

It is an arithmetic number, because the mean of its divisors is an integer number (8499267).

Almost surely, 2^55042804 is an apocalyptic number.

It is an amenable number.

55042804 is a deficient number, since it is larger than the sum of its proper divisors (46948400).

55042804 is a wasteful number, since it uses less digits than its factorization.

55042804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809474 (or 809472 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 55042804 is about 7419.0837709248. The cubic root of 55042804 is about 380.3938759955.

Adding to 55042804 its reverse (40824055), we get a palindrome (95866859).

The spelling of 55042804 in words is "fifty-five million, forty-two thousand, eight hundred four".