571696493 has 4 divisors (see below), whose sum is σ = 576755868. Its totient is φ = 566637120.

The previous prime is 571696471. The next prime is 571696501. The reversal of 571696493 is 394696175.

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 184905604 + 386790889 = 13598^2 + 19667^2 .

It is a cyclic number.

It is not a de Polignac number, because 571696493 - 2⁶ = 571696429 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 (571696093) 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, 2529518 + ... + 2529743.

It is an arithmetic number, because the mean of its divisors is an integer number (144188967).

Almost surely, 2^571696493 is an apocalyptic number.

It is an amenable number.

571696493 is a deficient number, since it is larger than the sum of its proper divisors (5059375).

571696493 is a wasteful number, since it uses less digits than its factorization.

571696493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059374.

The product of its digits is 1224720, while the sum is 50.

The square root of 571696493 is about 23910.1755116938. The cubic root of 571696493 is about 829.9562046858.

The spelling of 571696493 in words is "five hundred seventy-one million, six hundred ninety-six thousand, four hundred ninety-three".