255393849 has 4 divisors (see below), whose sum is σ = 340525136. Its totient is φ = 170262564.

The previous prime is 255393847. The next prime is 255393881. The reversal of 255393849 is 948393552.

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 not a de Polignac number, because 255393849 - 2¹ = 255393847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255393798 and 255393807.

It is not an unprimeable number, because it can be changed into a prime (255393847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42565639 + ... + 42565644.

It is an arithmetic number, because the mean of its divisors is an integer number (85131284).

Almost surely, 2^255393849 is an apocalyptic number.

It is an amenable number.

255393849 is a deficient number, since it is larger than the sum of its proper divisors (85131287).

255393849 is an equidigital number, since it uses as much as digits as its factorization.

255393849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85131286.

The product of its digits is 1166400, while the sum is 48.

The square root of 255393849 is about 15981.0465552166. The cubic root of 255393849 is about 634.4588764308.

The spelling of 255393849 in words is "two hundred fifty-five million, three hundred ninety-three thousand, eight hundred forty-nine".