1255578 has 8 divisors (see below), whose sum is σ = 2511168. Its totient is φ = 418524.

The previous prime is 1255567. The next prime is 1255591. The reversal of 1255578 is 8755521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1255578 is an admirable number.

It is a super-2 number, since 2×1255578² = 3152952228168, which contains 22 as substring.

It is a plaindrome in base 10.

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, 104626 + ... + 104637.

It is an arithmetic number, because the mean of its divisors is an integer number (313896).

2^1255578 is an apocalyptic number.

1255578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1255578 is a wasteful number, since it uses less digits than its factorization.

1255578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209268.

The product of its digits is 14000, while the sum is 33.

The square root of 1255578 is about 1120.5257694493. The cubic root of 1255578 is about 107.8817292396.

The spelling of 1255578 in words is "one million, two hundred fifty-five thousand, five hundred seventy-eight".