56432320 has 168 divisors, whose sum is σ = 161574480. Its totient is φ = 18708480.

The previous prime is 56432293. The next prime is 56432351. The reversal of 56432320 is 2323465.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 925090 + ... + 925150.

Almost surely, 2^56432320 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 56432320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80787240).

56432320 is an abundant number, since it is smaller than the sum of its proper divisors (105142160).

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

56432320 is a wasteful number, since it uses less digits than its factorization.

56432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 56432320 is about 7512.1448335346. The cubic root of 56432320 is about 383.5682357771.

Adding to 56432320 its reverse (2323465), we get a palindrome (58755785).

The spelling of 56432320 in words is "fifty-six million, four hundred thirty-two thousand, three hundred twenty".