505222222505 has 64 divisors (see below), whose sum is σ = 861891383808. Its totient is φ = 273616220160.

The previous prime is 505222222487. The next prime is 505222222597.

505222222505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 505222222505 - 2⁶ = 505222222441 is a prime.

It is a super-2 number, since 2×505222222505² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2883842 + ... + 3054011.

It is an arithmetic number, because the mean of its divisors is an integer number (13467052872).

Almost surely, 2^505222222505 is an apocalyptic number.

505222222505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505222222505 is a deficient number, since it is larger than the sum of its proper divisors (356669161303).

505222222505 is a wasteful number, since it uses less digits than its factorization.

505222222505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937906.

The product of its (nonzero) digits is 40000, while the sum is 32.

It can be divided in two parts, 505222 and 222505, that added together give a palindrome (727727).

The spelling of 505222222505 in words is "five hundred five billion, two hundred twenty-two million, two hundred twenty-two thousand, five hundred five".