1255255 has 4 divisors (see below), whose sum is σ = 1506312. Its totient is φ = 1004200.

The previous prime is 1255253. The next prime is 1255259. The reversal of 1255255 is 5525521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5525521 = 607 ⋅9103.

It is not a de Polignac number, because 1255255 - 2¹ = 1255253 is a prime.

It is a Duffinian number.

1255255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125521 + ... + 125530.

It is an arithmetic number, because the mean of its divisors is an integer number (376578).

2^1255255 is an apocalyptic number.

1255255 is a deficient number, since it is larger than the sum of its proper divisors (251057).

1255255 is an equidigital number, since it uses as much as digits as its factorization.

1255255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251056.

The product of its digits is 2500, while the sum is 25.

The square root of 1255255 is about 1120.3816314096. The cubic root of 1255255 is about 107.8724775146.

The spelling of 1255255 in words is "one million, two hundred fifty-five thousand, two hundred fifty-five".