504729225 has 288 divisors, whose sum is σ = 1273918464. Its totient is φ = 191289600.

The previous prime is 504729223. The next prime is 504729241. The reversal of 504729225 is 522927405.

It is a happy number.

It is not a de Polignac number, because 504729225 - 2¹ = 504729223 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 504729225.

It is not an unprimeable number, because it can be changed into a prime (504729221) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 6081034 + ... + 6081116.

It is an arithmetic number, because the mean of its divisors is an integer number (4423328).

Almost surely, 2^504729225 is an apocalyptic number.

504729225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

504729225 is an abundant number, since it is smaller than the sum of its proper divisors (769189239).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504729225 is a wasteful number, since it uses less digits than its factorization.

504729225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 122 counting only the distinct ones).

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

The square root of 504729225 is about 22466.1795817624. The cubic root of 504729225 is about 796.1950698445.

The spelling of 504729225 in words is "five hundred four million, seven hundred twenty-nine thousand, two hundred twenty-five".