56547072 has 144 divisors (see below), whose sum is σ = 170960160. Its totient is φ = 18662400.

The previous prime is 56547019. The next prime is 56547089. The reversal of 56547072 is 27074565.

56547072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

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 15 ways as a sum of consecutive naturals, for example, 559822 + ... + 559922.

Almost surely, 2^56547072 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 56547072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85480080).

56547072 is an abundant number, since it is smaller than the sum of its proper divisors (114413088).

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

56547072 is an frugal number, since it uses more digits than its factorization.

56547072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 56547072 is about 7519.7787201486. The cubic root of 56547072 is about 383.8280480128.

The spelling of 56547072 in words is "fifty-six million, five hundred forty-seven thousand, seventy-two".