504225251 has 4 divisors (see below), whose sum is σ = 526148112. Its totient is φ = 482302392.

The previous prime is 504225221. The next prime is 504225263. The reversal of 504225251 is 152522405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 504225251 - 2⁶ = 504225187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504225251.

It is not an unprimeable number, because it can be changed into a prime (504225221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10961396 + ... + 10961441.

It is an arithmetic number, because the mean of its divisors is an integer number (131537028).

Almost surely, 2^504225251 is an apocalyptic number.

504225251 is a deficient number, since it is larger than the sum of its proper divisors (21922861).

504225251 is a wasteful number, since it uses less digits than its factorization.

504225251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21922860.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 504225251 is about 22454.9604987406. The cubic root of 504225251 is about 795.9299803522.

Adding to 504225251 its reverse (152522405), we get a palindrome (656747656).

The spelling of 504225251 in words is "five hundred four million, two hundred twenty-five thousand, two hundred fifty-one".