55078000380 has 192 divisors, whose sum is σ = 185071824000. Its totient is φ = 13518213120.

The previous prime is 55078000357. The next prime is 55078000447. The reversal of 55078000380 is 8300087055.

It is a happy number.

55078000380 is a `hidden beast` number, since 550 + 78 + 0 + 0 + 0 + 38 + 0 = 666.

It is a super-2 number, since 2×55078000380² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2438740 + ... + 2461220.

It is an arithmetic number, because the mean of its divisors is an integer number (963915750).

Almost surely, 2^55078000380 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 55078000380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92535912000).

55078000380 is an abundant number, since it is smaller than the sum of its proper divisors (129993823620).

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

55078000380 is a wasteful number, since it uses less digits than its factorization.

55078000380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22861 (or 22853 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 55078000380 in words is "fifty-five billion, seventy-eight million, three hundred eighty", and thus it is an aban number.