553343868 has 108 divisors (see below), whose sum is σ = 1775074392. Its totient is φ = 143720640.

The previous prime is 553343839. The next prime is 553343881. The reversal of 553343868 is 868343355.

553343868 is a `hidden beast` number, since 553 + 3 + 4 + 38 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5146 + ... + 33662.

It is an arithmetic number, because the mean of its divisors is an integer number (16435874).

Almost surely, 2^553343868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553343868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887537196).

553343868 is an abundant number, since it is smaller than the sum of its proper divisors (1221730524).

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

553343868 is a wasteful number, since it uses less digits than its factorization.

553343868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28552 (or 28540 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 553343868 is about 23523.2622737579. The cubic root of 553343868 is about 820.9783424870.

The spelling of 553343868 in words is "five hundred fifty-three million, three hundred forty-three thousand, eight hundred sixty-eight".