1255877728 has 48 divisors (see below), whose sum is σ = 2828286720. Its totient is φ = 537745536.

The previous prime is 1255877677. The next prime is 1255877729. The reversal of 1255877728 is 8277785521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255877729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360925 + ... + 364387.

It is an arithmetic number, because the mean of its divisors is an integer number (58922640).

Almost surely, 2^1255877728 is an apocalyptic number.

It is an amenable number.

1255877728 is an abundant number, since it is smaller than the sum of its proper divisors (1572408992).

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

1255877728 is a wasteful number, since it uses less digits than its factorization.

1255877728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099 (or 5091 counting only the distinct ones).

The product of its digits is 2195200, while the sum is 52.

The square root of 1255877728 is about 35438.3651993147. The cubic root of 1255877728 is about 1078.9031296285.

The spelling of 1255877728 in words is "one billion, two hundred fifty-five million, eight hundred seventy-seven thousand, seven hundred twenty-eight".