56247747 has 16 divisors (see below), whose sum is σ = 79800192. Its totient is φ = 35118720.

The previous prime is 56247739. The next prime is 56247797. The reversal of 56247747 is 74774265.

56247747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56247747 - 2³ = 56247739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56247699 and 56247708.

It is not an unprimeable number, because it can be changed into a prime (56247797) 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, 8148 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (4987512).

Almost surely, 2^56247747 is an apocalyptic number.

56247747 is a deficient number, since it is larger than the sum of its proper divisors (23552445).

56247747 is a wasteful number, since it uses less digits than its factorization.

56247747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458.

The product of its digits is 329280, while the sum is 42.

The square root of 56247747 is about 7499.8497984960. The cubic root of 56247747 is about 383.1496005873.

The spelling of 56247747 in words is "fifty-six million, two hundred forty-seven thousand, seven hundred forty-seven".