1255856 has 20 divisors (see below), whose sum is σ = 2781072. Its totient is φ = 538176.

The previous prime is 1255847. The next prime is 1255861. The reversal of 1255856 is 6585521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495 + ... + 5718.

2^1255856 is an apocalyptic number.

1255856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1255856 is an abundant number, since it is smaller than the sum of its proper divisors (1525216).

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

1255856 is a wasteful number, since it uses less digits than its factorization.

1255856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11228 (or 11222 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The square root of 1255856 is about 1120.6498114933. The cubic root of 1255856 is about 107.8896907541.

The spelling of 1255856 in words is "one million, two hundred fifty-five thousand, eight hundred fifty-six".