55442174172000 has 384 divisors, whose sum is σ = 226446003883008. Its totient is φ = 11520451584000.

The previous prime is 55442174171899. The next prime is 55442174172013. The reversal of 55442174172000 is 27147124455.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29077177 + ... + 30925176.

It is an arithmetic number, because the mean of its divisors is an integer number (589703135112).

Almost surely, 2^{55442174172000} is an apocalyptic number.

55442174172000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55442174172000 is an abundant number, since it is smaller than the sum of its proper divisors (171003829711008).

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

55442174172000 is a wasteful number, since it uses less digits than its factorization.

55442174172000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60002399 (or 60002381 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 55442174172000 in words is "fifty-five trillion, four hundred forty-two billion, one hundred seventy-four million, one hundred seventy-two thousand".