8269140553 has 4 divisors (see below), whose sum is σ = 8269962948. Its totient is φ = 8268318160.

The previous prime is 8269140547. The next prime is 8269140557. The reversal of 8269140553 is 3550419628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5321410704 + 2947729849 = 72948^2 + 54293^2 .

It is a cyclic number.

It is not a de Polignac number, because 8269140553 - 2⁵ = 8269140521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8269140557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395926 + ... + 416287.

It is an arithmetic number, because the mean of its divisors is an integer number (2067490737).

Almost surely, 2^8269140553 is an apocalyptic number.

It is an amenable number.

8269140553 is a deficient number, since it is larger than the sum of its proper divisors (822395).

8269140553 is a wasteful number, since it uses less digits than its factorization.

8269140553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822394.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 8269140553 is about 90934.8148565773. The cubic root of 8269140553 is about 2022.1814613315.

The spelling of 8269140553 in words is "eight billion, two hundred sixty-nine million, one hundred forty thousand, five hundred fifty-three".