556811232 has 96 divisors (see below), whose sum is σ = 1531353600. Its totient is φ = 176816640.

The previous prime is 556811219. The next prime is 556811237. The reversal of 556811232 is 232118655.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 556811193 and 556811202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556811237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929269 + ... + 929867.

It is an arithmetic number, because the mean of its divisors is an integer number (15951600).

Almost surely, 2^556811232 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 556811232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765676800).

556811232 is an abundant number, since it is smaller than the sum of its proper divisors (974542368).

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

556811232 is a wasteful number, since it uses less digits than its factorization.

556811232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1048 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 556811232 is about 23596.8479250937. The cubic root of 556811232 is about 822.6895782862.

Adding to 556811232 its reverse (232118655), we get a palindrome (788929887).

The spelling of 556811232 in words is "five hundred fifty-six million, eight hundred eleven thousand, two hundred thirty-two".