573725709 has 12 divisors (see below), whose sum is σ = 828946300. Its totient is φ = 382377024.

The previous prime is 573725683. The next prime is 573725717. The reversal of 573725709 is 907527375.

It is a happy number.

573725709 is a `hidden beast` number, since 5 + 7 + 3 + 72 + 570 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 282340809 + 291384900 = 16803^2 + 17070^2 .

It is not a de Polignac number, because 573725709 - 2²⁴ = 556948493 is a prime.

It is a super-2 number, since 2×573725709² = 658322378335105362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573726709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38307 + ... + 51135.

Almost surely, 2^573725709 is an apocalyptic number.

It is an amenable number.

573725709 is a deficient number, since it is larger than the sum of its proper divisors (255220591).

573725709 is a wasteful number, since it uses less digits than its factorization.

573725709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17804 (or 17801 counting only the distinct ones).

The product of its (nonzero) digits is 463050, while the sum is 45.

The square root of 573725709 is about 23952.5720748315. The cubic root of 573725709 is about 830.9370116515.

The spelling of 573725709 in words is "five hundred seventy-three million, seven hundred twenty-five thousand, seven hundred nine".