55663838804 has 12 divisors (see below), whose sum is σ = 111327677664. Its totient is φ = 23855930904.

The previous prime is 55663838719. The next prime is 55663838807. The reversal of 55663838804 is 40883836655.

55663838804 is an admirable number.

It is a super-3 number, since 3×55663838804³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55663838804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55663838807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993997094 + ... + 993997149.

It is an arithmetic number, because the mean of its divisors is an integer number (9277306472).

Almost surely, 2^55663838804 is an apocalyptic number.

It is an amenable number.

55663838804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55663838804 is a wasteful number, since it uses less digits than its factorization.

55663838804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987994254 (or 1987994252 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 55663838804 in words is "fifty-five billion, six hundred sixty-three million, eight hundred thirty-eight thousand, eight hundred four".