56945745 has 12 divisors (see below), whose sum is σ = 98706036. Its totient is φ = 30371040.

The previous prime is 56945743. The next prime is 56945747. The reversal of 56945745 is 54754965.

56945745 is a `hidden beast` number, since 569 + 45 + 7 + 45 = 666.

56945745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56945743) and next prime (56945747).

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 33558849 = 4836^2 + 5793^2 .

It is not a de Polignac number, because 56945745 - 2¹ = 56945743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1265461 = 56945745 / (5 + 6 + 9 + 4 + 5 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 56945745.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56945741) 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 11 ways as a sum of consecutive naturals, for example, 632686 + ... + 632775.

It is an arithmetic number, because the mean of its divisors is an integer number (8225503).

Almost surely, 2^56945745 is an apocalyptic number.

It is an amenable number.

56945745 is a deficient number, since it is larger than the sum of its proper divisors (41760291).

56945745 is a wasteful number, since it uses less digits than its factorization.

56945745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265472 (or 1265469 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 56945745 is about 7546.2404546900. The cubic root of 56945745 is about 384.7279688515.

The spelling of 56945745 in words is "fifty-six million, nine hundred forty-five thousand, seven hundred forty-five".