523560393 has 6 divisors (see below), whose sum is σ = 756253914. Its totient is φ = 349040256.

The previous prime is 523560391. The next prime is 523560481. The reversal of 523560393 is 393065325.

523560393 is a `hidden beast` number, since 5 + 2 + 3 + 560 + 3 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 382710969 + 140849424 = 19563^2 + 11868^2 .

It is not a de Polignac number, because 523560393 - 2¹ = 523560391 is a prime.

It is a super-3 number, since 3×523560393³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (523560391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29086680 + ... + 29086697.

It is an arithmetic number, because the mean of its divisors is an integer number (126042319).

Almost surely, 2^523560393 is an apocalyptic number.

It is an amenable number.

523560393 is a deficient number, since it is larger than the sum of its proper divisors (232693521).

523560393 is a wasteful number, since it uses less digits than its factorization.

523560393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58173383 (or 58173380 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 36.

The square root of 523560393 is about 22881.4421092727. The cubic root of 523560393 is about 805.9762819178.

The spelling of 523560393 in words is "five hundred twenty-three million, five hundred sixty thousand, three hundred ninety-three".