505551222 has 24 divisors (see below), whose sum is σ = 1194939720. Its totient is φ = 153197280.

The previous prime is 505551209. The next prime is 505551227. The reversal of 505551222 is 222155505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505551227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276447 + ... + 1276842.

It is an arithmetic number, because the mean of its divisors is an integer number (49789155).

Almost surely, 2^505551222 is an apocalyptic number.

505551222 is an abundant number, since it is smaller than the sum of its proper divisors (689388498).

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

505551222 is a wasteful number, since it uses less digits than its factorization.

505551222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553308 (or 2553305 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 505551222 is about 22484.4662378274. The cubic root of 505551222 is about 796.6270605435.

The spelling of 505551222 in words is "five hundred five million, five hundred fifty-one thousand, two hundred twenty-two".