56411320 has 128 divisors (see below), whose sum is σ = 153538560. Its totient is φ = 18247680.

The previous prime is 56411297. The next prime is 56411353. The reversal of 56411320 is 2311465.

56411320 = 398² + 399² + ... + 614².

56411320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56411291 and 56411300.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 581512 + ... + 581608.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^56411320 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 56411320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76769280).

56411320 is an abundant number, since it is smaller than the sum of its proper divisors (97127240).

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

56411320 is a wasteful number, since it uses less digits than its factorization.

56411320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56411320 is about 7510.7469668469. The cubic root of 56411320 is about 383.5206511524.

Adding to 56411320 its reverse (2311465), we get a palindrome (58722785).

The spelling of 56411320 in words is "fifty-six million, four hundred eleven thousand, three hundred twenty".