55104440 has 32 divisors (see below), whose sum is σ = 124228080. Its totient is φ = 21998592.

The previous prime is 55104431. The next prime is 55104443. The reversal of 55104440 is 4440155.

55104440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55104443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26312 + ... + 28328.

Almost surely, 2^55104440 is an apocalyptic number.

It is an amenable number.

55104440 is an abundant number, since it is smaller than the sum of its proper divisors (69123640).

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

55104440 is a wasteful number, since it uses less digits than its factorization.

55104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 55104440 is about 7423.2364909115. The cubic root of 55104440 is about 380.5358092378.

Adding to 55104440 its reverse (4440155), we get a palindrome (59544595).

The spelling of 55104440 in words is "fifty-five million, one hundred four thousand, four hundred forty".