1255251103 has 4 divisors (see below), whose sum is σ = 1272930768. Its totient is φ = 1237571440.

The previous prime is 1255251091. The next prime is 1255251119. The reversal of 1255251103 is 3011525521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255251103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255255103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8839726 + ... + 8839867.

It is an arithmetic number, because the mean of its divisors is an integer number (318232692).

Almost surely, 2^1255251103 is an apocalyptic number.

1255251103 is a deficient number, since it is larger than the sum of its proper divisors (17679665).

1255251103 is an equidigital number, since it uses as much as digits as its factorization.

1255251103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17679664.

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

The square root of 1255251103 is about 35429.5230422313. The cubic root of 1255251103 is about 1078.7236588271.

Adding to 1255251103 its reverse (3011525521), we get a palindrome (4266776624).

The spelling of 1255251103 in words is "one billion, two hundred fifty-five million, two hundred fifty-one thousand, one hundred three".