575431785 has 12 divisors (see below), whose sum is σ = 997415172. Its totient is φ = 306896928.

The previous prime is 575431781. The next prime is 575431811. The reversal of 575431785 is 587134575.

It is a happy number.

575431785 is a `hidden beast` number, since 575 + 4 + 3 + 1 + 78 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 138579984 + 436851801 = 11772^2 + 20901^2 .

It is not a de Polignac number, because 575431785 - 2² = 575431781 is a prime.

It is a super-2 number, since 2×575431785² = 662243478376572450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 12787373 = 575431785 / (5 + 7 + 5 + 4 + 3 + 1 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 575431785.

It is not an unprimeable number, because it can be changed into a prime (575431781) 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, 6393642 + ... + 6393731.

It is an arithmetic number, because the mean of its divisors is an integer number (83117931).

Almost surely, 2^575431785 is an apocalyptic number.

It is an amenable number.

575431785 is a deficient number, since it is larger than the sum of its proper divisors (421983387).

575431785 is a wasteful number, since it uses less digits than its factorization.

575431785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12787384 (or 12787381 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 575431785 is about 23988.1592666048. The cubic root of 575431785 is about 831.7598431800.

The spelling of 575431785 in words is "five hundred seventy-five million, four hundred thirty-one thousand, seven hundred eighty-five".