255376057 has 4 divisors (see below), whose sum is σ = 270398196. Its totient is φ = 240353920.

The previous prime is 255376049. The next prime is 255376063. The reversal of 255376057 is 750673552.

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 132963961 + 122412096 = 11531^2 + 11064^2 .

It is a cyclic number.

It is not a de Polignac number, because 255376057 - 2³ = 255376049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255376007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7511044 + ... + 7511077.

It is an arithmetic number, because the mean of its divisors is an integer number (67599549).

Almost surely, 2^255376057 is an apocalyptic number.

It is an amenable number.

255376057 is a deficient number, since it is larger than the sum of its proper divisors (15022139).

255376057 is a wasteful number, since it uses less digits than its factorization.

255376057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022138.

The product of its (nonzero) digits is 220500, while the sum is 40.

The square root of 255376057 is about 15980.4898861080. The cubic root of 255376057 is about 634.4441429064. Note that the first 3 decimals are identical.

The spelling of 255376057 in words is "two hundred fifty-five million, three hundred seventy-six thousand, fifty-seven".