523313433 has 8 divisors (see below), whose sum is σ = 775279200. Its totient is φ = 348875604.

The previous prime is 523313419. The next prime is 523313437. The reversal of 523313433 is 334313325.

It is a happy number.

523313433 is a `hidden beast` number, since 523 + 3 + 134 + 3 + 3 = 666.

It is not a de Polignac number, because 523313433 - 2¹³ = 523305241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 19381979 = 523313433 / (5 + 2 + 3 + 3 + 1 + 3 + 4 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 523313397 and 523313406.

It is not an unprimeable number, because it can be changed into a prime (523313437) 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 7 ways as a sum of consecutive naturals, for example, 9690963 + ... + 9691016.

It is an arithmetic number, because the mean of its divisors is an integer number (96909900).

Almost surely, 2^523313433 is an apocalyptic number.

It is an amenable number.

523313433 is a deficient number, since it is larger than the sum of its proper divisors (251965767).

523313433 is a wasteful number, since it uses less digits than its factorization.

523313433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19381988 (or 19381982 counting only the distinct ones).

The product of its digits is 9720, while the sum is 27.

The square root of 523313433 is about 22876.0449597390. The cubic root of 523313433 is about 805.8495374139.

Adding to 523313433 its reverse (334313325), we get a palindrome (857626758).

The spelling of 523313433 in words is "five hundred twenty-three million, three hundred thirteen thousand, four hundred thirty-three".