133053505225 has 9 divisors (see below), whose sum is σ = 164988608053. Its totient is φ = 106441345120.

The previous prime is 133053505181. The next prime is 133053505229. The reversal of 133053505225 is 522505350331.

The square root of 133053505225 is 364765.

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 3859267129 + 129194238096 = 62123^2 + 359436^2 .

It is not a de Polignac number, because 133053505225 - 2⁷ = 133053505097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133053505229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1787349 + ... + 1860301.

Almost surely, 2^133053505225 is an apocalyptic number.

133053505225 is the 364765-th square number.

133053505225 is the 182383-rd centered octagonal number.

It is an amenable number.

133053505225 is a deficient number, since it is larger than the sum of its proper divisors (31935102828).

133053505225 is an frugal number, since it uses more digits than its factorization.

133053505225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145916 (or 72958 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 34.

Adding to 133053505225 its reverse (522505350331), we get a palindrome (655558855556).

The spelling of 133053505225 in words is "one hundred thirty-three billion, fifty-three million, five hundred five thousand, two hundred twenty-five".