54557816850 has 36 divisors (see below), whose sum is σ = 146578669146. Its totient is φ = 14548751040.

The previous prime is 54557816849. The next prime is 54557816851. The reversal of 54557816850 is 5861875545.

54557816850 is a `hidden beast` number, since 5 + 4 + 5 + 578 + 1 + 68 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (54557816849) and next prime (54557816851).

It can be written as a sum of positive squares in 3 ways, for example, as 51453209889 + 3104606961 = 226833^2 + 55719^2 .

It is not an unprimeable number, because it can be changed into a prime (54557816851) 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 17 ways as a sum of consecutive naturals, for example, 60619347 + ... + 60620246.

Almost surely, 2^54557816850 is an apocalyptic number.

54557816850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54557816850 is an abundant number, since it is smaller than the sum of its proper divisors (92020852296).

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

54557816850 is a wasteful number, since it uses less digits than its factorization.

54557816850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121239611 (or 121239603 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 54.

The spelling of 54557816850 in words is "fifty-four billion, five hundred fifty-seven million, eight hundred sixteen thousand, eight hundred fifty".