505725222 has 32 divisors (see below), whose sum is σ = 1022321664. Its totient is φ = 166773600.

The previous prime is 505725211. The next prime is 505725247. The reversal of 505725222 is 222527505.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 505725222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228043 + ... + 230249.

It is an arithmetic number, because the mean of its divisors is an integer number (31947552).

Almost surely, 2^505725222 is an apocalyptic number.

505725222 is an abundant number, since it is smaller than the sum of its proper divisors (516596442).

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

505725222 is a wasteful number, since it uses less digits than its factorization.

505725222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 505725222 is about 22488.3352429654. The cubic root of 505725222 is about 796.7184441020.

The spelling of 505725222 in words is "five hundred five million, seven hundred twenty-five thousand, two hundred twenty-two".