504512561 has 8 divisors (see below), whose sum is σ = 579484800. Its totient is φ = 430265088.

The previous prime is 504512551. The next prime is 504512611. The reversal of 504512561 is 165215405.

It is a happy number.

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 504512561 - 2⁶ = 504512497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504512531) 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, 179696 + ... + 182481.

It is an arithmetic number, because the mean of its divisors is an integer number (72435600).

Almost surely, 2^504512561 is an apocalyptic number.

It is an amenable number.

504512561 is a deficient number, since it is larger than the sum of its proper divisors (74972239).

504512561 is a wasteful number, since it uses less digits than its factorization.

504512561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362383.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 504512561 is about 22461.3570605162. The cubic root of 504512561 is about 796.0811265723.

Adding to 504512561 its reverse (165215405), we get a palindrome (669727966).

The spelling of 504512561 in words is "five hundred four million, five hundred twelve thousand, five hundred sixty-one".