6559745 has 8 divisors (see below), whose sum is σ = 7960680. Its totient is φ = 5188480.

The previous prime is 6559741. The next prime is 6559747. The reversal of 6559745 is 5479556.

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 5234944 = 1151^2 + 2288^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6559745 - 2² = 6559741 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 5³ + 5³ + 9⁷ + 7⁴ + 4⁷ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (6559741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6926 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (995085).

Almost surely, 2^6559745 is an apocalyptic number.

It is an amenable number.

6559745 is a deficient number, since it is larger than the sum of its proper divisors (1400935).

6559745 is a wasteful number, since it uses less digits than its factorization.

6559745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14835.

The product of its digits is 189000, while the sum is 41.

The square root of 6559745 is about 2561.1999141028. The cubic root of 6559745 is about 187.1956068471.

The spelling of 6559745 in words is "six million, five hundred fifty-nine thousand, seven hundred forty-five".