5209285 has 4 divisors (see below), whose sum is σ = 6251148. Its totient is φ = 4167424.

The previous prime is 5209283. The next prime is 5209291. The reversal of 5209285 is 5829025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2490084 + 2719201 = 1578^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 5209285 - 2¹ = 5209283 is a prime.

It is a super-2 number, since 2×5209285² = 54273300422450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520924 + ... + 520933.

It is an arithmetic number, because the mean of its divisors is an integer number (1562787).

Almost surely, 2^5209285 is an apocalyptic number.

It is an amenable number.

5209285 is a deficient number, since it is larger than the sum of its proper divisors (1041863).

5209285 is a wasteful number, since it uses less digits than its factorization.

5209285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041862.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5209285 is about 2282.3858131350. The cubic root of 5209285 is about 173.3508755257.

The spelling of 5209285 in words is "five million, two hundred nine thousand, two hundred eighty-five".