1255552311 has 16 divisors (see below), whose sum is σ = 1820700000. Its totient is φ = 764995200.

The previous prime is 1255552301. The next prime is 1255552367. The reversal of 1255552311 is 1132555521.

It is not a de Polignac number, because 1255552311 - 2⁶ = 1255552247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255552301) 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 15 ways as a sum of consecutive naturals, for example, 155436 + ... + 163313.

It is an arithmetic number, because the mean of its divisors is an integer number (113793750).

Almost surely, 2^1255552311 is an apocalyptic number.

1255552311 is a deficient number, since it is larger than the sum of its proper divisors (565147689).

1255552311 is a wasteful number, since it uses less digits than its factorization.

1255552311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318866.

The product of its digits is 7500, while the sum is 30.

The square root of 1255552311 is about 35433.7735924358. The cubic root of 1255552311 is about 1078.8099348477.

The spelling of 1255552311 in words is "one billion, two hundred fifty-five million, five hundred fifty-two thousand, three hundred eleven".