1255211133 has 32 divisors (see below), whose sum is σ = 1952387712. Its totient is φ = 708864000.

The previous prime is 1255211123. The next prime is 1255211141. The reversal of 1255211133 is 3311125521.

It is not a de Polignac number, because 1255211133 - 2⁵ = 1255211101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255211123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45585 + ... + 67737.

It is an arithmetic number, because the mean of its divisors is an integer number (61012116).

Almost surely, 2^1255211133 is an apocalyptic number.

It is an amenable number.

1255211133 is a deficient number, since it is larger than the sum of its proper divisors (697176579).

1255211133 is a wasteful number, since it uses less digits than its factorization.

1255211133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22285.

The product of its digits is 900, while the sum is 24.

The square root of 1255211133 is about 35428.9589601501. The cubic root of 1255211133 is about 1078.7122090483.

Adding to 1255211133 its reverse (3311125521), we get a palindrome (4566336654).

The spelling of 1255211133 in words is "one billion, two hundred fifty-five million, two hundred eleven thousand, one hundred thirty-three".