55130085 has 32 divisors (see below), whose sum is σ = 100298880. Its totient is φ = 28715904.

The previous prime is 55130063. The next prime is 55130161. The reversal of 55130085 is 58003155.

55130085 is a `hidden beast` number, since 551 + 30 + 0 + 85 = 666.

It is not a de Polignac number, because 55130085 - 2¹¹ = 55128037 is a prime.

It is a super-3 number, since 3×55130085³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1057 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (3134340).

Almost surely, 2^55130085 is an apocalyptic number.

It is an amenable number.

55130085 is a deficient number, since it is larger than the sum of its proper divisors (45168795).

55130085 is a wasteful number, since it uses less digits than its factorization.

55130085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554 (or 9548 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55130085 is about 7424.9636362746. The cubic root of 55130085 is about 380.5948324752.

The spelling of 55130085 in words is "fifty-five million, one hundred thirty thousand, eighty-five".