1255066877 has 4 divisors (see below), whose sum is σ = 1258293660. Its totient is φ = 1251840096.

The previous prime is 1255066873. The next prime is 1255066889. The reversal of 1255066877 is 7786605521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 854626756 + 400440121 = 29234^2 + 20011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255066877 - 2² = 1255066873 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 (1255066873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1612808 + ... + 1613585.

It is an arithmetic number, because the mean of its divisors is an integer number (314573415).

Almost surely, 2^1255066877 is an apocalyptic number.

It is an amenable number.

1255066877 is a deficient number, since it is larger than the sum of its proper divisors (3226783).

1255066877 is an equidigital number, since it uses as much as digits as its factorization.

1255066877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226782.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 1255066877 is about 35426.9230529551. The cubic root of 1255066877 is about 1078.6708835517.

The spelling of 1255066877 in words is "one billion, two hundred fifty-five million, sixty-six thousand, eight hundred seventy-seven".