56113830 has 128 divisors (see below), whose sum is σ = 158578560. Its totient is φ = 14100480.

The previous prime is 56113777. The next prime is 56113831. The reversal of 56113830 is 3831165.

56113830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 56113794 and 56113803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56113831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 409522 + ... + 409658.

It is an arithmetic number, because the mean of its divisors is an integer number (1238895).

Almost surely, 2^56113830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56113830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79289280).

56113830 is an abundant number, since it is smaller than the sum of its proper divisors (102464730).

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

56113830 is a wasteful number, since it uses less digits than its factorization.

56113830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 56113830 is about 7490.9164993344. The cubic root of 56113830 is about 382.8452860605.

Adding to 56113830 its reverse (3831165), we get a palindrome (59944995).

The spelling of 56113830 in words is "fifty-six million, one hundred thirteen thousand, eight hundred thirty".