553443668 has 12 divisors (see below), whose sum is σ = 980196000. Its totient is φ = 273387672.

The previous prime is 553443661. The next prime is 553443677. The reversal of 553443668 is 866344355.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553443661) 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, 833168 + ... + 833831.

It is an arithmetic number, because the mean of its divisors is an integer number (81683000).

Almost surely, 2^553443668 is an apocalyptic number.

It is an amenable number.

553443668 is a deficient number, since it is larger than the sum of its proper divisors (426752332).

553443668 is a wasteful number, since it uses less digits than its factorization.

553443668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667086 (or 1667084 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 553443668 is about 23525.3834825280. The cubic root of 553443668 is about 821.0276961939.

The spelling of 553443668 in words is "five hundred fifty-three million, four hundred forty-three thousand, six hundred sixty-eight".