523243605 has 16 divisors (see below), whose sum is σ = 845320320. Its totient is φ = 276353088.

The previous prime is 523243601. The next prime is 523243619. The reversal of 523243605 is 506342325.

It is not a de Polignac number, because 523243605 - 2² = 523243601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523243601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167790 + ... + 170879.

It is an arithmetic number, because the mean of its divisors is an integer number (52832520).

Almost surely, 2^523243605 is an apocalyptic number.

It is an amenable number.

523243605 is a deficient number, since it is larger than the sum of its proper divisors (322076715).

523243605 is a wasteful number, since it uses less digits than its factorization.

523243605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338780.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 523243605 is about 22874.5186834609. The cubic root of 523243605 is about 805.8136931436.

The spelling of 523243605 in words is "five hundred twenty-three million, two hundred forty-three thousand, six hundred five".