255285757 has 8 divisors (see below), whose sum is σ = 257681600. Its totient is φ = 252901440.

The previous prime is 255285707. The next prime is 255285773. The reversal of 255285757 is 757582552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255285757 - 2¹⁵ = 255252989 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 (255285707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45298 + ... + 50620.

It is an arithmetic number, because the mean of its divisors is an integer number (32210200).

Almost surely, 2^255285757 is an apocalyptic number.

It is an amenable number.

255285757 is a deficient number, since it is larger than the sum of its proper divisors (2395843).

255285757 is a wasteful number, since it uses less digits than its factorization.

255285757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763.

The product of its digits is 980000, while the sum is 46.

The square root of 255285757 is about 15977.6643161634. The cubic root of 255285757 is about 634.3693550809.

The spelling of 255285757 in words is "two hundred fifty-five million, two hundred eighty-five thousand, seven hundred fifty-seven".