255755278 has 4 divisors (see below), whose sum is σ = 383632920. Its totient is φ = 127877638.

The previous prime is 255755261. The next prime is 255755317. The reversal of 255755278 is 872557552.

255755278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63938818 + ... + 63938821.

It is an arithmetic number, because the mean of its divisors is an integer number (95908230).

Almost surely, 2^255755278 is an apocalyptic number.

255755278 is a deficient number, since it is larger than the sum of its proper divisors (127877642).

255755278 is a wasteful number, since it uses less digits than its factorization.

255755278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127877641.

The product of its digits is 980000, while the sum is 46.

The square root of 255755278 is about 15992.3506089630. The cubic root of 255755278 is about 634.7580271352.

The spelling of 255755278 in words is "two hundred fifty-five million, seven hundred fifty-five thousand, two hundred seventy-eight".