1255555012 has 12 divisors (see below), whose sum is σ = 2198608300. Its totient is φ = 627381216.

The previous prime is 1255554991. The next prime is 1255555019. The reversal of 1255555012 is 2105555521.

It can be written as a sum of positive squares in 2 ways, for example, as 273108676 + 982446336 = 16526^2 + 31344^2 .

It is not an unprimeable number, because it can be changed into a prime (1255555019) 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, 91887 + ... + 104662.

Almost surely, 2^1255555012 is an apocalyptic number.

It is an amenable number.

1255555012 is a deficient number, since it is larger than the sum of its proper divisors (943053288).

1255555012 is a wasteful number, since it uses less digits than its factorization.

1255555012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198150 (or 198148 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The square root of 1255555012 is about 35433.8117057705. The cubic root of 1255555012 is about 1078.8107084418.

The spelling of 1255555012 in words is "one billion, two hundred fifty-five million, five hundred fifty-five thousand, twelve".