54778539000 has 256 divisors, whose sum is σ = 190490227200. Its totient is φ = 13024512000.

The previous prime is 54778538999. The next prime is 54778539001. The reversal of 54778539000 is 93587745.

It is an interprime number because it is at equal distance from previous prime (54778538999) and next prime (54778539001).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54778539001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 940735 + ... + 997265.

It is an arithmetic number, because the mean of its divisors is an integer number (744102450).

Almost surely, 2^54778539000 is an apocalyptic number.

54778539000 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 54778539000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95245113600).

54778539000 is an abundant number, since it is smaller than the sum of its proper divisors (135711688200).

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

54778539000 is a wasteful number, since it uses less digits than its factorization.

54778539000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56591 (or 56577 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 54778539000 in words is "fifty-four billion, seven hundred seventy-eight million, five hundred thirty-nine thousand".