56535312 has 80 divisors (see below), whose sum is σ = 151383168. Its totient is φ = 18170880.

The previous prime is 56535301. The next prime is 56535341. The reversal of 56535312 is 21353565.

It is a self number, because there is not a number n which added to its sum of digits gives 56535312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180468 + ... + 180780.

Almost surely, 2^56535312 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 56535312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75691584).

56535312 is an abundant number, since it is smaller than the sum of its proper divisors (94847856).

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

56535312 is a wasteful number, since it uses less digits than its factorization.

56535312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 56535312 is about 7518.9967415873. The cubic root of 56535312 is about 383.8014381423.

Adding to 56535312 its reverse (21353565), we get a palindrome (77888877).

The spelling of 56535312 in words is "fifty-six million, five hundred thirty-five thousand, three hundred twelve".