255746397 has 8 divisors (see below), whose sum is σ = 349312320. Its totient is φ = 166339040.

The previous prime is 255746383. The next prime is 255746399. The reversal of 255746397 is 793647552.

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 255746397 - 2⁶ = 255746333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255746399) 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 7 ways as a sum of consecutive naturals, for example, 1039497 + ... + 1039742.

It is an arithmetic number, because the mean of its divisors is an integer number (43664040).

Almost surely, 2^255746397 is an apocalyptic number.

It is an amenable number.

255746397 is a deficient number, since it is larger than the sum of its proper divisors (93565923).

255746397 is a wasteful number, since it uses less digits than its factorization.

255746397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079283.

The product of its digits is 1587600, while the sum is 48.

The square root of 255746397 is about 15992.0729425550. The cubic root of 255746397 is about 634.7506798104.

The spelling of 255746397 in words is "two hundred fifty-five million, seven hundred forty-six thousand, three hundred ninety-seven".