55378265037570 has 192 divisors, whose sum is σ = 154046406818304. Its totient is φ = 13754300774400.

The previous prime is 55378265037569. The next prime is 55378265037611. The reversal of 55378265037570 is 7573056287355.

55378265037570 is a `hidden beast` number, since 5 + 5 + 3 + 7 + 8 + 2 + 6 + 50 + 3 + 7 + 570 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55378265037498 and 55378265037507.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60305184 + ... + 61216596.

It is an arithmetic number, because the mean of its divisors is an integer number (802325035512).

Almost surely, 2^{55378265037570} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55378265037570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77023203409152).

55378265037570 is an abundant number, since it is smaller than the sum of its proper divisors (98668141780734).

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

55378265037570 is a wasteful number, since it uses less digits than its factorization.

55378265037570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911857 (or 911854 counting only the distinct ones).

The product of its (nonzero) digits is 185220000, while the sum is 63.

The spelling of 55378265037570 in words is "fifty-five trillion, three hundred seventy-eight billion, two hundred sixty-five million, thirty-seven thousand, five hundred seventy".