504640523 has 8 divisors (see below), whose sum is σ = 512333280. Its totient is φ = 496964160.

The previous prime is 504640483. The next prime is 504640531. The reversal of 504640523 is 325046405.

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

It is a cyclic number.

It is not a de Polignac number, because 504640523 - 2⁸ = 504640267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504640553) 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, 67223 + ... + 74351.

It is an arithmetic number, because the mean of its divisors is an integer number (64041660).

Almost surely, 2^504640523 is an apocalyptic number.

504640523 is a deficient number, since it is larger than the sum of its proper divisors (7692757).

504640523 is an equidigital number, since it uses as much as digits as its factorization.

504640523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8197.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 504640523 is about 22464.2053721025. The cubic root of 504640523 is about 796.1484255389.

Adding to 504640523 its reverse (325046405), we get a palindrome (829686928).

The spelling of 504640523 in words is "five hundred four million, six hundred forty thousand, five hundred twenty-three".