1255333205 has 24 divisors (see below), whose sum is σ = 1759249368. Its totient is φ = 857407488.

The previous prime is 1255333201. The next prime is 1255333207. The reversal of 1255333205 is 5023335521.

It can be written as a sum of positive squares in 4 ways, for example, as 263965009 + 991368196 = 16247^2 + 31486^2 .

It is not a de Polignac number, because 1255333205 - 2² = 1255333201 is a prime.

It is a super-2 number, since 2×1255333205² = 3151722911151144050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255333201) 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 23 ways as a sum of consecutive naturals, for example, 52997 + ... + 72933.

It is an arithmetic number, because the mean of its divisors is an integer number (73302057).

Almost surely, 2^1255333205 is an apocalyptic number.

It is an amenable number.

1255333205 is a deficient number, since it is larger than the sum of its proper divisors (503916163).

1255333205 is a wasteful number, since it uses less digits than its factorization.

1255333205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20213 (or 20206 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 1255333205 is about 35430.6816897446. The cubic root of 1255333205 is about 1078.7471769473.

Adding to 1255333205 its reverse (5023335521), we get a palindrome (6278668726).

The spelling of 1255333205 in words is "one billion, two hundred fifty-five million, three hundred thirty-three thousand, two hundred five".