575215409 has 4 divisors (see below), whose sum is σ = 578227200. Its totient is φ = 572203620.

The previous prime is 575215397. The next prime is 575215423. The reversal of 575215409 is 904512575.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 575215409 - 2⁴ = 575215393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (575215439) 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, 1505609 + ... + 1505990.

It is an arithmetic number, because the mean of its divisors is an integer number (144556800).

Almost surely, 2^575215409 is an apocalyptic number.

It is an amenable number.

575215409 is a deficient number, since it is larger than the sum of its proper divisors (3011791).

575215409 is a wasteful number, since it uses less digits than its factorization.

575215409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011790.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 575215409 is about 23983.6487841196. The cubic root of 575215409 is about 831.6555763000.

The spelling of 575215409 in words is "five hundred seventy-five million, two hundred fifteen thousand, four hundred nine".