56381332 has 12 divisors (see below), whose sum is σ = 112762720. Its totient is φ = 24163416.

The previous prime is 56381323. The next prime is 56381383. The reversal of 56381332 is 23318365.

56381332 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56381294 and 56381303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006782 + ... + 1006837.

Almost surely, 2^56381332 is an apocalyptic number.

It is an amenable number.

56381332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56381332 is a wasteful number, since it uses less digits than its factorization.

56381332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013630 (or 2013628 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 56381332 is about 7508.7503620776. The cubic root of 56381332 is about 383.4526798312.

Adding to 56381332 its reverse (23318365), we get a palindrome (79699697).

The spelling of 56381332 in words is "fifty-six million, three hundred eighty-one thousand, three hundred thirty-two".