56303712 has 72 divisors (see below), whose sum is σ = 161395416. Its totient is φ = 18617856.

The previous prime is 56303693. The next prime is 56303717. The reversal of 56303712 is 21730365.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56303717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38743 + ... + 40169.

It is an arithmetic number, because the mean of its divisors is an integer number (2241603).

Almost surely, 2^56303712 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 56303712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80697708).

56303712 is an abundant number, since it is smaller than the sum of its proper divisors (105091704).

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

56303712 is a wasteful number, since it uses less digits than its factorization.

56303712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 56303712 is about 7503.5799455993. The cubic root of 56303712 is about 383.2766329915.

The spelling of 56303712 in words is "fifty-six million, three hundred three thousand, seven hundred twelve".