524401331 has 4 divisors (see below), whose sum is σ = 524458200. Its totient is φ = 524344464.

The previous prime is 524401313. The next prime is 524401373. The reversal of 524401331 is 133104425.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 524401331 - 2¹⁰ = 524400307 is a prime.

It is a super-2 number, since 2×524401331² = 549993511909143122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 524401297 and 524401306.

It is not an unprimeable number, because it can be changed into a prime (524451331) 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 3 ways as a sum of consecutive naturals, for example, 11066 + ... + 34223.

It is an arithmetic number, because the mean of its divisors is an integer number (131114550).

Almost surely, 2^524401331 is an apocalyptic number.

524401331 is a deficient number, since it is larger than the sum of its proper divisors (56869).

524401331 is a wasteful number, since it uses less digits than its factorization.

524401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56868.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 524401331 is about 22899.8107197418. The cubic root of 524401331 is about 806.4075683786.

Adding to 524401331 its reverse (133104425), we get a palindrome (657505756).

The spelling of 524401331 in words is "five hundred twenty-four million, four hundred one thousand, three hundred thirty-one".