255772593 has 8 divisors (see below), whose sum is σ = 378922400. Its totient is φ = 170515044.

The previous prime is 255772571. The next prime is 255772597. The reversal of 255772593 is 395277552.

255772593 is a `hidden beast` number, since 2 + 5 + 57 + 7 + 2 + 593 = 666.

It is not a de Polignac number, because 255772593 - 2⁶ = 255772529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255772597) 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, 4736503 + ... + 4736556.

It is an arithmetic number, because the mean of its divisors is an integer number (47365300).

Almost surely, 2^255772593 is an apocalyptic number.

It is an amenable number.

255772593 is a deficient number, since it is larger than the sum of its proper divisors (123149807).

255772593 is an equidigital number, since it uses as much as digits as its factorization.

255772593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473068 (or 9473062 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 255772593 is about 15992.8919523643. The cubic root of 255772593 is about 634.7723514889.

The spelling of 255772593 in words is "two hundred fifty-five million, seven hundred seventy-two thousand, five hundred ninety-three".