504450221 has 8 divisors (see below), whose sum is σ = 557848704. Its totient is φ = 452308320.

The previous prime is 504450187. The next prime is 504450227. The reversal of 504450221 is 122054405.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504450221 - 2¹⁸ = 504188077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504450227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313301 + ... + 314906.

It is an arithmetic number, because the mean of its divisors is an integer number (69731088).

Almost surely, 2^504450221 is an apocalyptic number.

It is an amenable number.

504450221 is a deficient number, since it is larger than the sum of its proper divisors (53398483).

504450221 is a wasteful number, since it uses less digits than its factorization.

504450221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628291.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 504450221 is about 22459.9693009585. The cubic root of 504450221 is about 796.0483360167.

The spelling of 504450221 in words is "five hundred four million, four hundred fifty thousand, two hundred twenty-one".