56533312 has 56 divisors (see below), whose sum is σ = 123517152. Its totient is φ = 25459200.

The previous prime is 56533297. The next prime is 56533319. The reversal of 56533312 is 21333565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91918 + ... + 92530.

Almost surely, 2^56533312 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 56533312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61758576).

56533312 is an abundant number, since it is smaller than the sum of its proper divisors (66983840).

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

56533312 is a wasteful number, since it uses less digits than its factorization.

56533312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 757 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 56533312 is about 7518.8637439443. The cubic root of 56533312 is about 383.7969122870.

Adding to 56533312 its reverse (21333565), we get a palindrome (77866877).

The spelling of 56533312 in words is "fifty-six million, five hundred thirty-three thousand, three hundred twelve".