6560649 has 16 divisors (see below), whose sum is σ = 9777600. Its totient is φ = 4347648.

The previous prime is 6560647. The next prime is 6560651. The reversal of 6560649 is 9460656.

It is a happy number.

6560649 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (6560647) and next prime (6560651).

It is not a de Polignac number, because 6560649 - 2¹ = 6560647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6560647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4582 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (611100).

Almost surely, 2^6560649 is an apocalyptic number.

It is an amenable number.

6560649 is a deficient number, since it is larger than the sum of its proper divisors (3216951).

6560649 is a wasteful number, since it uses less digits than its factorization.

6560649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6560649 is about 2561.3763878040. The cubic root of 6560649 is about 187.2042056090.

The spelling of 6560649 in words is "six million, five hundred sixty thousand, six hundred forty-nine".