504221431 has 16 divisors (see below), whose sum is σ = 591945984. Its totient is φ = 420577344.

The previous prime is 504221413. The next prime is 504221437. The reversal of 504221431 is 134122405.

It is a cyclic number.

It is not a de Polignac number, because 504221431 - 2⁹ = 504220919 is a prime.

It is a super-2 number, since 2×504221431² = 508478502959375522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504221437) 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 15 ways as a sum of consecutive naturals, for example, 32451 + ... + 45403.

It is an arithmetic number, because the mean of its divisors is an integer number (36996624).

Almost surely, 2^504221431 is an apocalyptic number.

504221431 is a deficient number, since it is larger than the sum of its proper divisors (87724553).

504221431 is a wasteful number, since it uses less digits than its factorization.

504221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13110.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 504221431 is about 22454.8754394229. The cubic root of 504221431 is about 795.9279703642.

Adding to 504221431 its reverse (134122405), we get a palindrome (638343836).

The spelling of 504221431 in words is "five hundred four million, two hundred twenty-one thousand, four hundred thirty-one".