55844080 has 20 divisors (see below), whose sum is σ = 129837672. Its totient is φ = 22337600.

The previous prime is 55844027. The next prime is 55844083. The reversal of 55844080 is 8044855.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×55844080² = 6237122542092800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55844083) 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, 348946 + ... + 349105.

Almost surely, 2^55844080 is an apocalyptic number.

It is an amenable number.

55844080 is an abundant number, since it is smaller than the sum of its proper divisors (73993592).

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

55844080 is a wasteful number, since it uses less digits than its factorization.

55844080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698064 (or 698058 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 55844080 is about 7472.8896686623. The cubic root of 55844080 is about 382.2308300347.

The spelling of 55844080 in words is "fifty-five million, eight hundred forty-four thousand, eighty".