505145022 has 16 divisors (see below), whose sum is σ = 1019560080. Its totient is φ = 166836672.

The previous prime is 505145009. The next prime is 505145059. The reversal of 505145022 is 220541505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505144983 and 505145001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385543 + ... + 386850.

It is an arithmetic number, because the mean of its divisors is an integer number (63722505).

Almost surely, 2^505145022 is an apocalyptic number.

505145022 is an abundant number, since it is smaller than the sum of its proper divisors (514415058).

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

505145022 is a wasteful number, since it uses less digits than its factorization.

505145022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772507.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 505145022 is about 22475.4315197729. The cubic root of 505145022 is about 796.4136455603.

Adding to 505145022 its reverse (220541505), we get a palindrome (725686527).

The spelling of 505145022 in words is "five hundred five million, one hundred forty-five thousand, twenty-two".