505542222 has 40 divisors (see below), whose sum is σ = 1135562736. Its totient is φ = 168101568.

The previous prime is 505542217. The next prime is 505542227. The reversal of 505542222 is 222245505.

It is an interprime number because it is at equal distance from previous prime (505542217) and next prime (505542227).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505542227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66543 + ... + 73749.

Almost surely, 2^505542222 is an apocalyptic number.

505542222 is an abundant number, since it is smaller than the sum of its proper divisors (630020514).

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

505542222 is a wasteful number, since it uses less digits than its factorization.

505542222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654 (or 7645 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 505542222 is about 22484.2660987634. The cubic root of 505542222 is about 796.6223332375.

Adding to 505542222 its reverse (222245505), we get a palindrome (727787727).

The spelling of 505542222 in words is "five hundred five million, five hundred forty-two thousand, two hundred twenty-two".