5656556394 has 24 divisors (see below), whose sum is σ = 12279416292. Its totient is φ = 1881896640.

The previous prime is 5656556393. The next prime is 5656556407. The reversal of 5656556394 is 4936556565.

5656556394 is a `hidden beast` number, since 5 + 6 + 56 + 556 + 39 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5568890625 + 87665769 = 74625^2 + 9363^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5656556394.

It is not an unprimeable number, because it can be changed into a prime (5656556393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292209 + ... + 310964.

Almost surely, 2^5656556394 is an apocalyptic number.

5656556394 is an abundant number, since it is smaller than the sum of its proper divisors (6622859898).

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

5656556394 is a wasteful number, since it uses less digits than its factorization.

5656556394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603702 (or 603699 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 54.

The square root of 5656556394 is about 75210.0817311084. The cubic root of 5656556394 is about 1781.7661628647.

The spelling of 5656556394 in words is "five billion, six hundred fifty-six million, five hundred fifty-six thousand, three hundred ninety-four".