55378485324800 has 264 divisors, whose sum is σ = 152576346868272. Its totient is φ = 19757670400000.

The previous prime is 55378485324797. The next prime is 55378485324839. The reversal of 55378485324800 is 842358487355.

It is a super-2 number, since 2×55378485324800² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13069550 + ... + 16780050.

Almost surely, 2^{55378485324800} is an apocalyptic number.

55378485324800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55378485324800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76288173434136).

55378485324800 is an abundant number, since it is smaller than the sum of its proper divisors (97197861543472).

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

55378485324800 is a wasteful number, since it uses less digits than its factorization.

55378485324800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710595 (or 3710572 counting only the distinct ones).

The product of its (nonzero) digits is 129024000, while the sum is 62.

The spelling of 55378485324800 in words is "fifty-five trillion, three hundred seventy-eight billion, four hundred eighty-five million, three hundred twenty-four thousand, eight hundred".