8253143815 has 16 divisors (see below), whose sum is σ = 11390697792. Its totient is φ = 5623248384.

The previous prime is 8253143813. The next prime is 8253143819. The reversal of 8253143815 is 5183413528.

8253143815 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8253143815 - 2¹ = 8253143813 is a prime.

It is a super-2 number, since 2×8253143815² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8253143813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745474 + ... + 756463.

It is an arithmetic number, because the mean of its divisors is an integer number (711918612).

Almost surely, 2^8253143815 is an apocalyptic number.

8253143815 is a deficient number, since it is larger than the sum of its proper divisors (3137553977).

8253143815 is a wasteful number, since it uses less digits than its factorization.

8253143815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502106.

The product of its digits is 115200, while the sum is 40.

The square root of 8253143815 is about 90846.8151065297. The cubic root of 8253143815 is about 2020.8766425843.

The spelling of 8253143815 in words is "eight billion, two hundred fifty-three million, one hundred forty-three thousand, eight hundred fifteen".