450663231523522 has 4 divisors (see below), whose sum is σ = 675994847285286. Its totient is φ = 225331615761760.

The previous prime is 450663231523517. The next prime is 450663231523553. The reversal of 450663231523522 is 225325132366054.

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., 418935708190561 + 31727523332961 = 20467919^2 + 5632719^2 .

It is a super-4 number, since 4×450663231523522⁴ (a number of 60 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112665807880879 + ... + 112665807880882.

Almost surely, 2^{450663231523522} is an apocalyptic number.

450663231523522 is a deficient number, since it is larger than the sum of its proper divisors (225331615761764).

450663231523522 is a wasteful number, since it uses less digits than its factorization.

450663231523522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225331615761763.

The product of its (nonzero) digits is 7776000, while the sum is 49.

Adding to 450663231523522 its reverse (225325132366054), we get a palindrome (675988363889576).

The spelling of 450663231523522 in words is "four hundred fifty trillion, six hundred sixty-three billion, two hundred thirty-one million, five hundred twenty-three thousand, five hundred twenty-two".