55900185 has 48 divisors (see below), whose sum is σ = 103548480. Its totient is φ = 25660800.

The previous prime is 55900183. The next prime is 55900219. The reversal of 55900185 is 58100955.

55900185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55900185 - 2¹ = 55900183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55900183) 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 47 ways as a sum of consecutive naturals, for example, 33675 + ... + 35295.

It is an arithmetic number, because the mean of its divisors is an integer number (2157260).

Almost surely, 2^55900185 is an apocalyptic number.

55900185 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55900185 is a deficient number, since it is larger than the sum of its proper divisors (47648295).

55900185 is a wasteful number, since it uses less digits than its factorization.

55900185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The square root of 55900185 is about 7476.6426288810. The cubic root of 55900185 is about 382.3587927658.

The spelling of 55900185 in words is "fifty-five million, nine hundred thousand, one hundred eighty-five".