504450729 has 6 divisors (see below), whose sum is σ = 728651066. Its totient is φ = 336300480.

The previous prime is 504450719. The next prime is 504450733. The reversal of 504450729 is 927054405.

It can be written as a sum of positive squares in only one way, i.e., 467727129 + 36723600 = 21627^2 + 6060^2 .

It is not a de Polignac number, because 504450729 - 2⁷ = 504450601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504450693 and 504450702.

It is not an unprimeable number, because it can be changed into a prime (504450719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28025032 + ... + 28025049.

Almost surely, 2^504450729 is an apocalyptic number.

It is an amenable number.

504450729 is a deficient number, since it is larger than the sum of its proper divisors (224200337).

504450729 is a wasteful number, since it uses less digits than its factorization.

504450729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56050087 (or 56050084 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 504450729 is about 22459.9806099649. The cubic root of 504450729 is about 796.0486032333.

The spelling of 504450729 in words is "five hundred four million, four hundred fifty thousand, seven hundred twenty-nine".