56501340 has 96 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 12350976.

The previous prime is 56501327. The next prime is 56501359. The reversal of 56501340 is 4310565.

56501340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56501340.

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, 6736 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^56501340 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 56501340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94348800).

56501340 is an abundant number, since it is smaller than the sum of its proper divisors (132196260).

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

56501340 is a wasteful number, since it uses less digits than its factorization.

56501340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891 (or 5889 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56501340 is about 7516.7373241321. The cubic root of 56501340 is about 383.7245474671.

The spelling of 56501340 in words is "fifty-six million, five hundred one thousand, three hundred forty".