55404105003820 has 24 divisors (see below), whose sum is σ = 116720341353504. Its totient is φ = 22090838030976.

The previous prime is 55404105003817. The next prime is 55404105003827. The reversal of 55404105003820 is 2830050140455.

It is a super-2 number, since 2×55404105003820² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55404105003820.

It is not an unprimeable number, because it can be changed into a prime (55404105003827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425241744 + ... + 4425254263.

It is an arithmetic number, because the mean of its divisors is an integer number (4863347556396).

Almost surely, 2^{55404105003820} is an apocalyptic number.

It is an amenable number.

55404105003820 is an abundant number, since it is smaller than the sum of its proper divisors (61316236349684).

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

55404105003820 is a wasteful number, since it uses less digits than its factorization.

55404105003820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850496329 (or 8850496327 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 55404105003820 in words is "fifty-five trillion, four hundred four billion, one hundred five million, three thousand, eight hundred twenty".