1255853 has 4 divisors (see below), whose sum is σ = 1259100. Its totient is φ = 1252608.

The previous prime is 1255847. The next prime is 1255861. The reversal of 1255853 is 3585521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3585521 = 17 ⋅210913.

It can be written as a sum of positive squares in 2 ways, for example, as 850084 + 405769 = 922^2 + 637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255853 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255153) 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 3 ways as a sum of consecutive naturals, for example, 950 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (314775).

2^1255853 is an apocalyptic number.

It is an amenable number.

1255853 is a deficient number, since it is larger than the sum of its proper divisors (3247).

1255853 is an equidigital number, since it uses as much as digits as its factorization.

1255853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246.

The product of its digits is 6000, while the sum is 29.

The square root of 1255853 is about 1120.6484729834. The cubic root of 1255853 is about 107.8896048448.

The spelling of 1255853 in words is "one million, two hundred fifty-five thousand, eight hundred fifty-three".