225165424561522 has 4 divisors (see below), whose sum is σ = 337748136842286. Its totient is φ = 112582712280760.

The previous prime is 225165424561471. The next prime is 225165424561537.

It is a happy number.

225165424561522 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 181566489064921 + 43598935496601 = 13474661^2 + 6602949^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225165424561522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56291356140379 + ... + 56291356140382.

Almost surely, 2^{225165424561522} is an apocalyptic number.

225165424561522 is a deficient number, since it is larger than the sum of its proper divisors (112582712280764).

225165424561522 is a wasteful number, since it uses less digits than its factorization.

225165424561522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112582712280763.

The product of its digits is 11520000, while the sum is 52.

The spelling of 225165424561522 in words is "two hundred twenty-five trillion, one hundred sixty-five billion, four hundred twenty-four million, five hundred sixty-one thousand, five hundred twenty-two".