1255242355 has 8 divisors (see below), whose sum is σ = 1509253200. Its totient is φ = 1002218976.

The previous prime is 1255242349. The next prime is 1255242431. The reversal of 1255242355 is 5532425521.

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 1255242355 - 2¹¹ = 1255240307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255242355.

It is an unprimeable number.

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, 244065 + ... + 249154.

It is an arithmetic number, because the mean of its divisors is an integer number (188656650).

Almost surely, 2^1255242355 is an apocalyptic number.

1255242355 is a deficient number, since it is larger than the sum of its proper divisors (254010845).

1255242355 is an equidigital number, since it uses as much as digits as its factorization.

1255242355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493733.

The product of its digits is 60000, while the sum is 34.

The square root of 1255242355 is about 35429.3995856548. The cubic root of 1255242355 is about 1078.7211529018.

Adding to 1255242355 its reverse (5532425521), we get a palindrome (6787667876).

The spelling of 1255242355 in words is "one billion, two hundred fifty-five million, two hundred forty-two thousand, three hundred fifty-five".