609593561 has 4 divisors (see below), whose sum is σ = 609960912. Its totient is φ = 609226212.

The previous prime is 609593539. The next prime is 609593563. The reversal of 609593561 is 165395906.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 609593561 - 2¹⁰ = 609592537 is a prime.

It is a super-2 number, since 2×609593561² = 743208619225321442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609593563) 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, 181175 + ... + 184508.

It is an arithmetic number, because the mean of its divisors is an integer number (152490228).

Almost surely, 2^609593561 is an apocalyptic number.

It is an amenable number.

609593561 is a deficient number, since it is larger than the sum of its proper divisors (367351).

609593561 is a wasteful number, since it uses less digits than its factorization.

609593561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367350.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 609593561 is about 24689.9485823685. The cubic root of 609593561 is about 847.9042074844.

The spelling of 609593561 in words is "six hundred nine million, five hundred ninety-three thousand, five hundred sixty-one".