255992193 has 24 divisors (see below), whose sum is σ = 388252800. Its totient is φ = 162306144.

The previous prime is 255992167. The next prime is 255992333. The reversal of 255992193 is 391299552.

255992193 is a `hidden beast` number, since 2 + 559 + 9 + 2 + 1 + 93 = 666.

It is not a de Polignac number, because 255992193 - 2¹⁸ = 255730049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255992393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10168 + ... + 24806.

It is an arithmetic number, because the mean of its divisors is an integer number (16177200).

Almost surely, 2^255992193 is an apocalyptic number.

It is an amenable number.

255992193 is a deficient number, since it is larger than the sum of its proper divisors (132260607).

255992193 is a wasteful number, since it uses less digits than its factorization.

255992193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14741 (or 14738 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The square root of 255992193 is about 15999.7560293899. The cubic root of 255992193 is about 634.9539661175.

The spelling of 255992193 in words is "two hundred fifty-five million, nine hundred ninety-two thousand, one hundred ninety-three".