56541780 has 48 divisors (see below), whose sum is σ = 175909440. Its totient is φ = 15077664.

The previous prime is 56541757. The next prime is 56541787. The reversal of 56541780 is 8714565.

56541780 is a `hidden beast` number, since 565 + 4 + 17 + 80 = 666.

56541780 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56541787) 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 15 ways as a sum of consecutive naturals, for example, 51814 + ... + 52893.

It is an arithmetic number, because the mean of its divisors is an integer number (3664780).

Almost surely, 2^56541780 is an apocalyptic number.

It is an amenable number.

56541780 is an abundant number, since it is smaller than the sum of its proper divisors (119367660).

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

56541780 is a wasteful number, since it uses less digits than its factorization.

56541780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104725 (or 104717 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 56541780 is about 7519.4268398595. The cubic root of 56541780 is about 383.8160740277.

The spelling of 56541780 in words is "fifty-six million, five hundred forty-one thousand, seven hundred eighty".