55016585 has 16 divisors (see below), whose sum is σ = 71253840. Its totient is φ = 40538880.

The previous prime is 55016531. The next prime is 55016587. The reversal of 55016585 is 58561055.

It can be written as a sum of positive squares in 8 ways, for example, as 1901641 + 53114944 = 1379^2 + 7288^2 .

It is not a de Polignac number, because 55016585 - 2²² = 50822281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55016587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53375 + ... + 54395.

It is an arithmetic number, because the mean of its divisors is an integer number (4453365).

Almost surely, 2^55016585 is an apocalyptic number.

It is an amenable number.

55016585 is a deficient number, since it is larger than the sum of its proper divisors (16237255).

55016585 is a wasteful number, since it uses less digits than its factorization.

55016585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 55016585 is about 7417.3165632862. The cubic root of 55016585 is about 380.3334676688. Note that the first 3 decimals are identical.

The spelling of 55016585 in words is "fifty-five million, sixteen thousand, five hundred eighty-five".