56436224 has 80 divisors (see below), whose sum is σ = 124314960. Its totient is φ = 25436160.

The previous prime is 56436223. The next prime is 56436229. The reversal of 56436224 is 42263465.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56436223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405947 + ... + 406085.

It is an arithmetic number, because the mean of its divisors is an integer number (1553937).

Almost surely, 2^56436224 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 56436224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62157480).

56436224 is an abundant number, since it is smaller than the sum of its proper divisors (67878736).

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

56436224 is a wasteful number, since it uses less digits than its factorization.

56436224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 215 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 56436224 is about 7512.4046749360. The cubic root of 56436224 is about 383.5770806841.

Adding to 56436224 its reverse (42263465), we get a palindrome (98699689).

The spelling of 56436224 in words is "fifty-six million, four hundred thirty-six thousand, two hundred twenty-four".