1255775 has 6 divisors (see below), whose sum is σ = 1557192. Its totient is φ = 1004600.

The previous prime is 1255759. The next prime is 1255799. The reversal of 1255775 is 5775521.

It is not a de Polignac number, because 1255775 - 2⁴ = 1255759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25091 + ... + 25140.

It is an arithmetic number, because the mean of its divisors is an integer number (259532).

2^1255775 is an apocalyptic number.

1255775 is a deficient number, since it is larger than the sum of its proper divisors (301417).

1255775 is an equidigital number, since it uses as much as digits as its factorization.

1255775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50241 (or 50236 counting only the distinct ones).

The product of its digits is 12250, while the sum is 32.

The square root of 1255775 is about 1120.6136711642. The cubic root of 1255775 is about 107.8873711536.

The spelling of 1255775 in words is "one million, two hundred fifty-five thousand, seven hundred seventy-five".