56144747 has 4 divisors (see below), whose sum is σ = 56855520. Its totient is φ = 55433976.

The previous prime is 56144723. The next prime is 56144773. The reversal of 56144747 is 74744165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56144747 - 2¹⁰ = 56143723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56144747.

It is not an unprimeable number, because it can be changed into a prime (56144707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355268 + ... + 355425.

It is an arithmetic number, because the mean of its divisors is an integer number (14213880).

Almost surely, 2^56144747 is an apocalyptic number.

56144747 is a deficient number, since it is larger than the sum of its proper divisors (710773).

56144747 is an equidigital number, since it uses as much as digits as its factorization.

56144747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710772.

The product of its digits is 94080, while the sum is 38.

The square root of 56144747 is about 7492.9798478309. The cubic root of 56144747 is about 382.9155851563.

The spelling of 56144747 in words is "fifty-six million, one hundred forty-four thousand, seven hundred forty-seven".