255567157 has 4 divisors (see below), whose sum is σ = 269018080. Its totient is φ = 242116236.

The previous prime is 255567107. The next prime is 255567167. The reversal of 255567157 is 751765552.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255567157 - 2¹¹ = 255565109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255567107) 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, 6725433 + ... + 6725470.

It is an arithmetic number, because the mean of its divisors is an integer number (67254520).

Almost surely, 2^255567157 is an apocalyptic number.

It is an amenable number.

255567157 is a deficient number, since it is larger than the sum of its proper divisors (13450923).

255567157 is a wasteful number, since it uses less digits than its factorization.

255567157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13450922.

The product of its digits is 367500, while the sum is 43.

The square root of 255567157 is about 15986.4679338496. The cubic root of 255567157 is about 634.6023567023.

The spelling of 255567157 in words is "two hundred fifty-five million, five hundred sixty-seven thousand, one hundred fifty-seven".