55517085 has 48 divisors (see below), whose sum is σ = 106089984. Its totient is φ = 26683776.

The previous prime is 55517083. The next prime is 55517093. The reversal of 55517085 is 58071555.

It is not a de Polignac number, because 55517085 - 2¹ = 55517083 is a prime.

It is a super-3 number, since 3×55517085³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55517083) 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 47 ways as a sum of consecutive naturals, for example, 24052 + ... + 26258.

It is an arithmetic number, because the mean of its divisors is an integer number (2210208).

Almost surely, 2^55517085 is an apocalyptic number.

It is an amenable number.

55517085 is a deficient number, since it is larger than the sum of its proper divisors (50572899).

55517085 is a wasteful number, since it uses less digits than its factorization.

55517085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 55517085 is about 7450.9787947625. The cubic root of 55517085 is about 381.4833182610.

The spelling of 55517085 in words is "fifty-five million, five hundred seventeen thousand, eighty-five".