557003232 has 144 divisors (see below), whose sum is σ = 1735428240. Its totient is φ = 168677376.

The previous prime is 557003201. The next prime is 557003233. The reversal of 557003232 is 232300755.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 557003196 and 557003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557003233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140023 + ... + 143945.

It is an arithmetic number, because the mean of its divisors is an integer number (12051585).

Almost surely, 2^557003232 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 557003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867714120).

557003232 is an abundant number, since it is smaller than the sum of its proper divisors (1178425008).

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

557003232 is a wasteful number, since it uses less digits than its factorization.

557003232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985 (or 3974 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 557003232 is about 23600.9159144301. The cubic root of 557003232 is about 822.7841275325.

Adding to 557003232 its reverse (232300755), we get a palindrome (789303987).

The spelling of 557003232 in words is "five hundred fifty-seven million, three thousand, two hundred thirty-two".