522079409 has 8 divisors (see below), whose sum is σ = 527052768. Its totient is φ = 517121280.

The previous prime is 522079399. The next prime is 522079417. The reversal of 522079409 is 904970225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522079409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522009409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72134 + ... + 79040.

It is an arithmetic number, because the mean of its divisors is an integer number (65881596).

Almost surely, 2^522079409 is an apocalyptic number.

It is an amenable number.

522079409 is a deficient number, since it is larger than the sum of its proper divisors (4973359).

522079409 is a wasteful number, since it uses less digits than its factorization.

522079409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 522079409 is about 22849.0570702600. The cubic root of 522079409 is about 805.2156149928.

It can be divided in two parts, 52207 and 9409, that added together give a palindrome (61616).

The spelling of 522079409 in words is "five hundred twenty-two million, seventy-nine thousand, four hundred nine".