553399788818 has 12 divisors (see below), whose sum is σ = 881801394522. Its totient is φ = 260423429760.

The previous prime is 553399788817. The next prime is 553399788853. The reversal of 553399788818 is 818887993355.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 467537310289 + 85862478529 = 683767^2 + 293023^2 .

It is not an unprimeable number, because it can be changed into a prime (553399788811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 478718963 + ... + 478720118.

Almost surely, 2^553399788818 is an apocalyptic number.

553399788818 is a deficient number, since it is larger than the sum of its proper divisors (328401605704).

553399788818 is a wasteful number, since it uses less digits than its factorization.

553399788818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957439117 (or 957439100 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 74.

The spelling of 553399788818 in words is "five hundred fifty-three billion, three hundred ninety-nine million, seven hundred eighty-eight thousand, eight hundred eighteen".