56551232 has 14 divisors (see below), whose sum is σ = 112218978. Its totient is φ = 28275584.

The previous prime is 56551211. The next prime is 56551241. The reversal of 56551232 is 23215565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 2027776 = 7384^2 + 1424^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56551195 and 56551204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 441743 + ... + 441870.

Almost surely, 2^56551232 is an apocalyptic number.

It is an amenable number.

56551232 is a deficient number, since it is larger than the sum of its proper divisors (55667746).

56551232 is an equidigital number, since it uses as much as digits as its factorization.

56551232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883625 (or 883615 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 56551232 is about 7520.0553189455. The cubic root of 56551232 is about 383.8374601449.

Adding to 56551232 its reverse (23215565), we get a palindrome (79766797).

The spelling of 56551232 in words is "fifty-six million, five hundred fifty-one thousand, two hundred thirty-two".