1255112305 has 16 divisors (see below), whose sum is σ = 1530083520. Its totient is φ = 988216768.

The previous prime is 1255112293. The next prime is 1255112321. The reversal of 1255112305 is 5032115521.

It is a cyclic number.

It is not a de Polignac number, because 1255112305 - 2¹⁵ = 1255079537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255112305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106014 + ... + 117256.

It is an arithmetic number, because the mean of its divisors is an integer number (95630220).

Almost surely, 2^1255112305 is an apocalyptic number.

It is an amenable number.

1255112305 is a deficient number, since it is larger than the sum of its proper divisors (274971215).

1255112305 is a wasteful number, since it uses less digits than its factorization.

1255112305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11600.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1255112305 is about 35427.5641979519. The cubic root of 1255112305 is about 1078.6838978037.

Adding to 1255112305 its reverse (5032115521), we get a palindrome (6287227826).

The spelling of 1255112305 in words is "one billion, two hundred fifty-five million, one hundred twelve thousand, three hundred five".