56281232 has 40 divisors (see below), whose sum is σ = 125753856. Its totient is φ = 23901696.

The previous prime is 56281229. The next prime is 56281241. The reversal of 56281232 is 23218265.

It is a junction number, because it is equal to n+sod(n) for n = 56281195 and 56281204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10433 + ... + 14879.

Almost surely, 2^56281232 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 56281232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62876928).

56281232 is an abundant number, since it is smaller than the sum of its proper divisors (69472624).

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

56281232 is a wasteful number, since it uses less digits than its factorization.

56281232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575 (or 4569 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 56281232 is about 7502.0818443949. The cubic root of 56281232 is about 383.2256167835.

Adding to 56281232 its reverse (23218265), we get a palindrome (79499497).

The spelling of 56281232 in words is "fifty-six million, two hundred eighty-one thousand, two hundred thirty-two".