504225691 has 4 divisors (see below), whose sum is σ = 509423992. Its totient is φ = 499027392.

The previous prime is 504225679. The next prime is 504225707. The reversal of 504225691 is 196522405.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196522405 = 5 ⋅39304481.

It is a cyclic number.

It is not a de Polignac number, because 504225691 - 2⁷ = 504225563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504225641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599005 + ... + 2599198.

It is an arithmetic number, because the mean of its divisors is an integer number (127355998).

Almost surely, 2^504225691 is an apocalyptic number.

504225691 is a deficient number, since it is larger than the sum of its proper divisors (5198301).

504225691 is an equidigital number, since it uses as much as digits as its factorization.

504225691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198300.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 504225691 is about 22454.9702961282. The cubic root of 504225691 is about 795.9302118685.

The spelling of 504225691 in words is "five hundred four million, two hundred twenty-five thousand, six hundred ninety-one".