1255655 has 8 divisors (see below), whose sum is σ = 1555584. Its totient is φ = 972000.

The previous prime is 1255651. The next prime is 1255663. The reversal of 1255655 is 5565521.

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

It is not a de Polignac number, because 1255655 - 2² = 1255651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3896 + ... + 4205.

It is an arithmetic number, because the mean of its divisors is an integer number (194448).

2^1255655 is an apocalyptic number.

1255655 is a deficient number, since it is larger than the sum of its proper divisors (299929).

1255655 is an equidigital number, since it uses as much as digits as its factorization.

1255655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137.

The product of its digits is 7500, while the sum is 29.

The square root of 1255655 is about 1120.5601277932. The cubic root of 1255655 is about 107.8839345249.

The spelling of 1255655 in words is "one million, two hundred fifty-five thousand, six hundred fifty-five".