5656220 has 24 divisors (see below), whose sum is σ = 12156144. Its totient is φ = 2209536.

The previous prime is 5656193. The next prime is 5656253. The reversal of 5656220 is 226565.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5656220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429 + ... + 4148.

It is an arithmetic number, because the mean of its divisors is an integer number (506506).

Almost surely, 2^5656220 is an apocalyptic number.

It is an amenable number.

5656220 is an abundant number, since it is smaller than the sum of its proper divisors (6499924).

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

5656220 is a wasteful number, since it uses less digits than its factorization.

5656220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 5656220 is about 2378.2808917367. The cubic root of 5656220 is about 178.1730841768.

The spelling of 5656220 in words is "five million, six hundred fifty-six thousand, two hundred twenty".