20453222450530 has 8 divisors (see below), whose sum is σ = 36815800410972. Its totient is φ = 8181288980208.

The previous prime is 20453222450513. The next prime is 20453222450543. The reversal of 20453222450530 is 3505422235402.

It can be written as a sum of positive squares in 2 ways, for example, as 20286385329681 + 166837120849 = 4504041^2 + 408457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20453222450530² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20453222450530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022661122517 + ... + 1022661122536.

Almost surely, 2^{20453222450530} is an apocalyptic number.

20453222450530 is a deficient number, since it is larger than the sum of its proper divisors (16362577960442).

20453222450530 is a wasteful number, since it uses less digits than its factorization.

20453222450530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045322245060.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 20453222450530 its reverse (3505422235402), we get a palindrome (23958644685932).

The spelling of 20453222450530 in words is "twenty trillion, four hundred fifty-three billion, two hundred twenty-two million, four hundred fifty thousand, five hundred thirty".