55376185920 has 448 divisors, whose sum is σ = 195284238336. Its totient is φ = 13183672320.

The previous prime is 55376185871. The next prime is 55376185933. The reversal of 55376185920 is 2958167355.

It is a happy 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, 210555709 + ... + 210555971.

Almost surely, 2^55376185920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55376185920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97642119168).

55376185920 is an abundant number, since it is smaller than the sum of its proper divisors (139908052416).

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

55376185920 is a wasteful number, since it uses less digits than its factorization.

55376185920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 55376185920 in words is "fifty-five billion, three hundred seventy-six million, one hundred eighty-five thousand, nine hundred twenty".