55803944 has 24 divisors (see below), whose sum is σ = 121716090. Its totient is φ = 23915808.

The previous prime is 55803919. The next prime is 55803947. The reversal of 55803944 is 44930855.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 122500 = 7462^2 + 350^2 .

It is a super-3 number, since 3×55803944³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55803898 and 55803907.

It is not an unprimeable number, because it can be changed into a prime (55803947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70787 + ... + 71570.

Almost surely, 2^55803944 is an apocalyptic number.

It is an amenable number.

55803944 is an abundant number, since it is smaller than the sum of its proper divisors (65912146).

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

55803944 is a wasteful number, since it uses less digits than its factorization.

55803944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142377 (or 142366 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 55803944 is about 7470.2037455480. The cubic root of 55803944 is about 382.1392363606.

The spelling of 55803944 in words is "fifty-five million, eight hundred three thousand, nine hundred forty-four".