612580509 has 16 divisors (see below), whose sum is σ = 907925440. Its totient is φ = 408207600.

The previous prime is 612580489. The next prime is 612580513. The reversal of 612580509 is 905085216.

It is a happy number.

It is not a de Polignac number, because 612580509 - 2⁵ = 612580477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612580609) 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, 91734 + ... + 98184.

It is an arithmetic number, because the mean of its divisors is an integer number (56745340).

Almost surely, 2^612580509 is an apocalyptic number.

It is an amenable number.

612580509 is a deficient number, since it is larger than the sum of its proper divisors (295344931).

612580509 is a wasteful number, since it uses less digits than its factorization.

612580509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9977 (or 9971 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 612580509 is about 24750.3638155078. The cubic root of 612580509 is about 849.2868338720.

It can be divided in two parts, 612580 and 509, that added together give a square (613089 = 783²).

The spelling of 612580509 in words is "six hundred twelve million, five hundred eighty thousand, five hundred nine".