55800085 has 8 divisors (see below), whose sum is σ = 73047456. Its totient is φ = 40581840.

The previous prime is 55800083. The next prime is 55800091. The reversal of 55800085 is 58000855.

It is a happy number.

55800085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55800085 - 2¹ = 55800083 is a prime.

It is a super-2 number, since 2×55800085² = 6227298972014450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55800083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507219 + ... + 507328.

It is an arithmetic number, because the mean of its divisors is an integer number (9130932).

Almost surely, 2^55800085 is an apocalyptic number.

55800085 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55800085 is a deficient number, since it is larger than the sum of its proper divisors (17247371).

55800085 is a wasteful number, since it uses less digits than its factorization.

55800085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014563.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 55800085 is about 7469.9454482613. The cubic root of 55800085 is about 382.1304274892.

The spelling of 55800085 in words is "fifty-five million, eight hundred thousand, eighty-five".