16303459225 has 9 divisors (see below), whose sum is σ = 20217081117. Its totient is φ = 13042256640.

The previous prime is 16303459141. The next prime is 16303459243. The reversal of 16303459225 is 52295430361.

The square root of 16303459225 is 127685.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2994606729 + 13308852496 = 54723^2 + 115364^2 .

It is not a de Polignac number, because 16303459225 - 2⁷ = 16303459097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 625657 + ... + 651193.

Almost surely, 2^16303459225 is an apocalyptic number.

16303459225 is the 127685-th square number.

16303459225 is the 63843-rd centered octagonal number.

It is an amenable number.

16303459225 is a deficient number, since it is larger than the sum of its proper divisors (3913621892).

16303459225 is an frugal number, since it uses more digits than its factorization.

16303459225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51084 (or 25542 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 16303459225 its reverse (52295430361), we get a palindrome (68598889586).

The spelling of 16303459225 in words is "sixteen billion, three hundred three million, four hundred fifty-nine thousand, two hundred twenty-five".