1255066878 has 32 divisors (see below), whose sum is σ = 2704615200. Its totient is φ = 385975296.

The previous prime is 1255066873. The next prime is 1255066889. The reversal of 1255066878 is 8786605521.

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 15 ways as a sum of consecutive naturals, for example, 238338 + ... + 243546.

It is an arithmetic number, because the mean of its divisors is an integer number (84519225).

Almost surely, 2^1255066878 is an apocalyptic number.

1255066878 is an abundant number, since it is smaller than the sum of its proper divisors (1449548322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255066878 is a wasteful number, since it uses less digits than its factorization.

1255066878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 1255066878 is about 35426.9230670686. The cubic root of 1255066878 is about 1078.6708838382.

The spelling of 1255066878 in words is "one billion, two hundred fifty-five million, sixty-six thousand, eight hundred seventy-eight".