56252224 has 56 divisors (see below), whose sum is σ = 128300480. Its totient is φ = 23970816.

The previous prime is 56252221. The next prime is 56252263. The reversal of 56252224 is 42225265.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 56252192 and 56252201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56252221) 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, 137332 + ... + 137740.

It is an arithmetic number, because the mean of its divisors is an integer number (2291080).

Almost surely, 2^56252224 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 56252224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64150240).

56252224 is an abundant number, since it is smaller than the sum of its proper divisors (72048256).

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

56252224 is a wasteful number, since it uses less digits than its factorization.

56252224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 725 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 56252224 is about 7500.1482652012. The cubic root of 56252224 is about 383.1597658256.

Adding to 56252224 its reverse (42225265), we get a palindrome (98477489).

The spelling of 56252224 in words is "fifty-six million, two hundred fifty-two thousand, two hundred twenty-four".