5265385289 has 4 divisors (see below), whose sum is σ = 5267231124. Its totient is φ = 5263539456.

The previous prime is 5265385273. The next prime is 5265385327. The reversal of 5265385289 is 9825835625.

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 4131918400 + 1133466889 = 64280^2 + 33667^2 .

It is a cyclic number.

It is not a de Polignac number, because 5265385289 - 2⁴ = 5265385273 is a prime.

It is a super-2 number, since 2×5265385289² = 55448564483235227042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5265385289.

It is not an unprimeable number, because it can be changed into a prime (5265385249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918632 + ... + 924345.

It is an arithmetic number, because the mean of its divisors is an integer number (1316807781).

Almost surely, 2^5265385289 is an apocalyptic number.

It is an amenable number.

5265385289 is a deficient number, since it is larger than the sum of its proper divisors (1845835).

5265385289 is a wasteful number, since it uses less digits than its factorization.

5265385289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845834.

The product of its digits is 5184000, while the sum is 53.

The square root of 5265385289 is about 72562.9746427198. The cubic root of 5265385289 is about 1739.7094341291.

The spelling of 5265385289 in words is "five billion, two hundred sixty-five million, three hundred eighty-five thousand, two hundred eighty-nine".