575475409 has 4 divisors (see below), whose sum is σ = 575527860. Its totient is φ = 575422960.

The previous prime is 575475371. The next prime is 575475427. The reversal of 575475409 is 904574575.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 444029184 + 131446225 = 21072^2 + 11465^2 .

It is a cyclic number.

It is not a de Polignac number, because 575475409 - 2²³ = 567086801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (575475469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2782 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (143881965).

Almost surely, 2^575475409 is an apocalyptic number.

It is an amenable number.

575475409 is a deficient number, since it is larger than the sum of its proper divisors (52451).

575475409 is a wasteful number, since it uses less digits than its factorization.

575475409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52450.

The product of its (nonzero) digits is 882000, while the sum is 46.

The square root of 575475409 is about 23989.0685313123. The cubic root of 575475409 is about 831.7808614689.

The spelling of 575475409 in words is "five hundred seventy-five million, four hundred seventy-five thousand, four hundred nine".