55804544 has 16 divisors (see below), whose sum is σ = 111173370. Its totient is φ = 27902208.

The previous prime is 55804543. The next prime is 55804549. The reversal of 55804544 is 44540855.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 2689600 = 7288^2 + 1640^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×55804544² = 6228294262095872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55804543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217859 + ... + 218114.

Almost surely, 2^55804544 is an apocalyptic number.

It is an amenable number.

55804544 is a deficient number, since it is larger than the sum of its proper divisors (55368826).

55804544 is an equidigital number, since it uses as much as digits as its factorization.

55804544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435987 (or 435975 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The square root of 55804544 is about 7470.2439049873. The cubic root of 55804544 is about 382.1406059336.

The spelling of 55804544 in words is "fifty-five million, eight hundred four thousand, five hundred forty-four".