553133556 has 96 divisors (see below), whose sum is σ = 1539578880. Its totient is φ = 171113472.

The previous prime is 553133533. The next prime is 553133569. The reversal of 553133556 is 655331355.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 553133556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131965 + ... + 136091.

It is an arithmetic number, because the mean of its divisors is an integer number (16037280).

Almost surely, 2^553133556 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 553133556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769789440).

553133556 is an abundant number, since it is smaller than the sum of its proper divisors (986445324).

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

553133556 is a wasteful number, since it uses less digits than its factorization.

553133556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230 (or 4222 counting only the distinct ones).

The product of its digits is 101250, while the sum is 36.

The square root of 553133556 is about 23518.7915505878. The cubic root of 553133556 is about 820.8743182767.

The spelling of 553133556 in words is "five hundred fifty-three million, one hundred thirty-three thousand, five hundred fifty-six".