55851206000 has 80 divisors (see below), whose sum is σ = 135562984128. Its totient is φ = 22255328000.

The previous prime is 55851205979. The next prime is 55851206011. The reversal of 55851206000 is 60215855.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 472910 + ... + 579090.

Almost surely, 2^55851206000 is an apocalyptic number.

55851206000 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 55851206000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67781492064).

55851206000 is an abundant number, since it is smaller than the sum of its proper divisors (79711778128).

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

55851206000 is a wasteful number, since it uses less digits than its factorization.

55851206000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106467 (or 106451 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 55851206000 in words is "fifty-five billion, eight hundred fifty-one million, two hundred six thousand".