255315243 has 8 divisors (see below), whose sum is σ = 346190400. Its totient is φ = 167325128.

The previous prime is 255315199. The next prime is 255315253. The reversal of 255315243 is 342513552.

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 255315243 - 2²² = 251120939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255315243.

It is not an unprimeable number, because it can be changed into a prime (255315253) 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, 721053 + ... + 721406.

It is an arithmetic number, because the mean of its divisors is an integer number (43273800).

Almost surely, 2^255315243 is an apocalyptic number.

255315243 is a deficient number, since it is larger than the sum of its proper divisors (90875157).

255315243 is a wasteful number, since it uses less digits than its factorization.

255315243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442521.

The product of its digits is 18000, while the sum is 30.

The square root of 255315243 is about 15978.5870151275. The cubic root of 255315243 is about 634.3937777709.

Adding to 255315243 its reverse (342513552), we get a palindrome (597828795).

The spelling of 255315243 in words is "two hundred fifty-five million, three hundred fifteen thousand, two hundred forty-three".