56009312 has 48 divisors (see below), whose sum is σ = 114960384. Its totient is φ = 26832000.

The previous prime is 56009311. The next prime is 56009329. The reversal of 56009312 is 21390065.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56009311) 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, 129737 + ... + 130167.

It is an arithmetic number, because the mean of its divisors is an integer number (2395008).

Almost surely, 2^56009312 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 56009312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57480192).

56009312 is an abundant number, since it is smaller than the sum of its proper divisors (58951072).

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

56009312 is a wasteful number, since it uses less digits than its factorization.

56009312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 56009312 is about 7483.9369318561. The cubic root of 56009312 is about 382.6074415877.

Adding to 56009312 its reverse (21390065), we get a palindrome (77399377).

The spelling of 56009312 in words is "fifty-six million, nine thousand, three hundred twelve".