6562009 has 4 divisors (see below), whose sum is σ = 6722100. Its totient is φ = 6401920.

The previous prime is 6562001. The next prime is 6562021. The reversal of 6562009 is 9002656.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3888784 + 2673225 = 1972^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 6562009 - 2³ = 6562001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6562001) 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, 79984 + ... + 80065.

It is an arithmetic number, because the mean of its divisors is an integer number (1680525).

Almost surely, 2^6562009 is an apocalyptic number.

It is an amenable number.

6562009 is a deficient number, since it is larger than the sum of its proper divisors (160091).

6562009 is a wasteful number, since it uses less digits than its factorization.

6562009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160090.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6562009 is about 2561.6418563101. The cubic root of 6562009 is about 187.2171403115.

It can be divided in two parts, 656 and 2009, that multiplied together give a square (1317904 = 1148²).

The spelling of 6562009 in words is "six million, five hundred sixty-two thousand, nine".