1255569 has 16 divisors (see below), whose sum is σ = 2026368. Its totient is φ = 675072.

The previous prime is 1255567. The next prime is 1255591. The reversal of 1255569 is 9655521.

It is not a de Polignac number, because 1255569 - 2¹ = 1255567 is a prime.

It is a super-2 number, since 2×1255569² = 3152907027522, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402 + ... + 2115.

It is an arithmetic number, because the mean of its divisors is an integer number (126648).

2^1255569 is an apocalyptic number.

It is an amenable number.

1255569 is a deficient number, since it is larger than the sum of its proper divisors (770799).

1255569 is a wasteful number, since it uses less digits than its factorization.

1255569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544.

The product of its digits is 13500, while the sum is 33.

The square root of 1255569 is about 1120.5217534702. The cubic root of 1255569 is about 107.8814714731.

The spelling of 1255569 in words is "one million, two hundred fifty-five thousand, five hundred sixty-nine".