5206985 has 24 divisors (see below), whose sum is σ = 7424136. Its totient is φ = 3494400.

The previous prime is 5206967. The next prime is 5206991. The reversal of 5206985 is 5896025.

It can be written as a sum of positive squares in 4 ways, for example, as 2569609 + 2637376 = 1603^2 + 1624^2 .

It is not a de Polignac number, because 5206985 - 2¹⁶ = 5141449 is a prime.

It is a super-2 number, since 2×5206985² = 54225385580450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12785 + ... + 13185.

It is an arithmetic number, because the mean of its divisors is an integer number (309339).

Almost surely, 2^5206985 is an apocalyptic number.

It is an amenable number.

5206985 is a deficient number, since it is larger than the sum of its proper divisors (2217151).

5206985 is a wasteful number, since it uses less digits than its factorization.

5206985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 5206985 is about 2281.8818987844. The cubic root of 5206985 is about 173.3253591828.

The spelling of 5206985 in words is "five million, two hundred six thousand, nine hundred eighty-five".