5209656 has 16 divisors (see below), whose sum is σ = 13024200. Its totient is φ = 1736544.

The previous prime is 5209627. The next prime is 5209657. The reversal of 5209656 is 6569025.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209657) 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, 108511 + ... + 108558.

Almost surely, 2^5209656 is an apocalyptic number.

It is an amenable number.

5209656 is an abundant number, since it is smaller than the sum of its proper divisors (7814544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5209656 is a wasteful number, since it uses less digits than its factorization.

5209656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217078 (or 217074 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 5209656 is about 2282.4670862906. The cubic root of 5209656 is about 173.3549907193.

The spelling of 5209656 in words is "five million, two hundred nine thousand, six hundred fifty-six".