1255057 has 4 divisors (see below), whose sum is σ = 1264356. Its totient is φ = 1245760.

The previous prime is 1255049. The next prime is 1255063. The reversal of 1255057 is 7505521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 576081 + 678976 = 759^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255057 - 2³ = 1255049 is a prime.

It is a Duffinian number.

1255057 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255157) 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, 4444 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (316089).

2^1255057 is an apocalyptic number.

It is an amenable number.

1255057 is a deficient number, since it is larger than the sum of its proper divisors (9299).

1255057 is an equidigital number, since it uses as much as digits as its factorization.

1255057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 1255057 is about 1120.2932651766. The cubic root of 1255057 is about 107.8668053939.

The spelling of 1255057 in words is "one million, two hundred fifty-five thousand, fifty-seven".