225305503522 has 16 divisors (see below), whose sum is σ = 368819039232. Its totient is φ = 102373451920.

The previous prime is 225305503481. The next prime is 225305503529.

225305503522 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (225305503529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846573 + ... + 1964800.

It is an arithmetic number, because the mean of its divisors is an integer number (23051189952).

Almost surely, 2^225305503522 is an apocalyptic number.

225305503522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225305503522 is a deficient number, since it is larger than the sum of its proper divisors (143513535710).

225305503522 is a wasteful number, since it uses less digits than its factorization.

225305503522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814073.

The product of its (nonzero) digits is 90000, while the sum is 34.

It can be divided in two parts, 225305 and 503522, that added together give a palindrome (728827).

The spelling of 225305503522 in words is "two hundred twenty-five billion, three hundred five million, five hundred three thousand, five hundred twenty-two".