1303305255 has 128 divisors (see below), whose sum is σ = 2895298560. Its totient is φ = 542453760.

The previous prime is 1303305233. The next prime is 1303305287. The reversal of 1303305255 is 5525033031.

1303305255 is a `hidden beast` number, since 1 + 303 + 305 + 2 + 55 = 666.

It is not a de Polignac number, because 1303305255 - 2⁶ = 1303305191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 496707 + ... + 499323.

It is an arithmetic number, because the mean of its divisors is an integer number (22619520).

Almost surely, 2^1303305255 is an apocalyptic number.

1303305255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1303305255 is an abundant number, since it is smaller than the sum of its proper divisors (1591993305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303305255 is a wasteful number, since it uses less digits than its factorization.

1303305255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 1303305255 is about 36101.3192972224. The cubic root of 1303305255 is about 1092.3170571320.

Adding to 1303305255 its reverse (5525033031), we get a palindrome (6828338286).

The spelling of 1303305255 in words is "one billion, three hundred three million, three hundred five thousand, two hundred fifty-five".