6572609 has 4 divisors (see below), whose sum is σ = 6585300. Its totient is φ = 6559920.

The previous prime is 6572597. The next prime is 6572617. The reversal of 6572609 is 9062756.

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 5017600 + 1555009 = 2240^2 + 1247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6572609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6502609) 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, 5534 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (1646325).

Almost surely, 2^6572609 is an apocalyptic number.

It is an amenable number.

6572609 is a deficient number, since it is larger than the sum of its proper divisors (12691).

6572609 is a wasteful number, since it uses less digits than its factorization.

6572609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 6572609 is about 2563.7100070016. The cubic root of 6572609 is about 187.3178937080.

The spelling of 6572609 in words is "six million, five hundred seventy-two thousand, six hundred nine".