255340427 has 4 divisors (see below), whose sum is σ = 255739416. Its totient is φ = 254941440.

The previous prime is 255340381. The next prime is 255340433. The reversal of 255340427 is 724043552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255340427 - 2⁶ = 255340363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255340393 and 255340402.

It is not an unprimeable number, because it can be changed into a prime (255343427) 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, 198533 + ... + 199814.

It is an arithmetic number, because the mean of its divisors is an integer number (63934854).

Almost surely, 2^255340427 is an apocalyptic number.

255340427 is a deficient number, since it is larger than the sum of its proper divisors (398989).

255340427 is an equidigital number, since it uses as much as digits as its factorization.

255340427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398988.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 255340427 is about 15979.3750503579. The cubic root of 255340427 is about 634.4146357077.

Adding to 255340427 its reverse (724043552), we get a palindrome (979383979).

The spelling of 255340427 in words is "two hundred fifty-five million, three hundred forty thousand, four hundred twenty-seven".