553945636 has 12 divisors (see below), whose sum is σ = 985297180. Its totient is φ = 272432160.

The previous prime is 553945633. The next prime is 553945643. The reversal of 553945636 is 636549355.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100000000 + 453945636 = 10000^2 + 21306^2 .

It is not an unprimeable number, because it can be changed into a prime (553945633) 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, 1134891 + ... + 1135378.

Almost surely, 2^553945636 is an apocalyptic number.

It is an amenable number.

553945636 is a deficient number, since it is larger than the sum of its proper divisors (431351544).

553945636 is a wasteful number, since it uses less digits than its factorization.

553945636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270334 (or 2270332 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 46.

The square root of 553945636 is about 23536.0497110284. The cubic root of 553945636 is about 821.2758425534.

The spelling of 553945636 in words is "five hundred fifty-three million, nine hundred forty-five thousand, six hundred thirty-six".