56303456 has 72 divisors (see below), whose sum is σ = 129371256. Its totient is φ = 23838720.

The previous prime is 56303453. The next prime is 56303459. The reversal of 56303456 is 65430365.

It is an interprime number because it is at equal distance from previous prime (56303453) and next prime (56303459).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56303453) 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, 580400 + ... + 580496.

It is an arithmetic number, because the mean of its divisors is an integer number (1796823).

Almost surely, 2^56303456 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 56303456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64685628).

56303456 is an abundant number, since it is smaller than the sum of its proper divisors (73067800).

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

56303456 is a wasteful number, since it uses less digits than its factorization.

56303456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 56303456 is about 7503.5628870557. The cubic root of 56303456 is about 383.2760521005.

The spelling of 56303456 in words is "fifty-six million, three hundred three thousand, four hundred fifty-six".