9803815255 has 128 divisors (see below), whose sum is σ = 14631321600. Its totient is φ = 6231859200.

The previous prime is 9803815253. The next prime is 9803815271. The reversal of 9803815255 is 5525183089.

It is not a de Polignac number, because 9803815255 - 2¹ = 9803815253 is a prime.

It is a super-2 number, since 2×9803815255² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9803815253) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 70530976 + ... + 70531114.

It is an arithmetic number, because the mean of its divisors is an integer number (114307200).

Almost surely, 2^9803815255 is an apocalyptic number.

9803815255 is a deficient number, since it is larger than the sum of its proper divisors (4827506345).

9803815255 is a wasteful number, since it uses less digits than its factorization.

9803815255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 9803815255 is about 99014.2174387093. The cubic root of 9803815255 is about 2140.2526308880.

The spelling of 9803815255 in words is "nine billion, eight hundred three million, eight hundred fifteen thousand, two hundred fifty-five".