553234432 has 52 divisors (see below), whose sum is σ = 1142284096. Its totient is φ = 267632640.

The previous prime is 553234411. The next prime is 553234441. The reversal of 553234432 is 234432355.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 553234394 and 553234403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124798 + ... + 129154.

Almost surely, 2^553234432 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 553234432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571142048).

553234432 is an abundant number, since it is smaller than the sum of its proper divisors (589049664).

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

553234432 is an equidigital number, since it uses as much as digits as its factorization.

553234432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4390 counting only the distinct ones).

The product of its digits is 43200, while the sum is 31.

The square root of 553234432 is about 23520.9360357959. The cubic root of 553234432 is about 820.9242167045.

Adding to 553234432 its reverse (234432355), we get a palindrome (787666787).

The spelling of 553234432 in words is "five hundred fifty-three million, two hundred thirty-four thousand, four hundred thirty-two".