1255163355 has 24 divisors (see below), whose sum is σ = 2250640080. Its totient is φ = 646336320.

The previous prime is 1255163339. The next prime is 1255163411. The reversal of 1255163355 is 5533615521.

1255163355 is a `hidden beast` number, since 12 + 5 + 5 + 1 + 633 + 5 + 5 = 666.

It is not a de Polignac number, because 1255163355 - 2⁴ = 1255163339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479601 + ... + 482210.

It is an arithmetic number, because the mean of its divisors is an integer number (93776670).

Almost surely, 2^1255163355 is an apocalyptic number.

1255163355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255163355 is a deficient number, since it is larger than the sum of its proper divisors (995476725).

1255163355 is a wasteful number, since it uses less digits than its factorization.

1255163355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961851 (or 961848 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 1255163355 is about 35428.2846748188. The cubic root of 1255163355 is about 1078.6985222763.

Adding to 1255163355 its reverse (5533615521), we get a palindrome (6788778876).

The spelling of 1255163355 in words is "one billion, two hundred fifty-five million, one hundred sixty-three thousand, three hundred fifty-five".