5261536673 has 4 divisors (see below), whose sum is σ = 5261703828. Its totient is φ = 5261369520.

The previous prime is 5261536667. The next prime is 5261536697. The reversal of 5261536673 is 3766351625.

It is a happy number.

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 5217606289 + 43930384 = 72233^2 + 6628^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261536673 - 2¹⁴ = 5261520289 is a prime.

It is a super-2 number, since 2×5261536673² = 55367536322647817858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5261532673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20486 + ... + 104607.

It is an arithmetic number, because the mean of its divisors is an integer number (1315425957).

Almost surely, 2^5261536673 is an apocalyptic number.

It is an amenable number.

5261536673 is a deficient number, since it is larger than the sum of its proper divisors (167155).

5261536673 is a wasteful number, since it uses less digits than its factorization.

5261536673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167154.

The product of its digits is 680400, while the sum is 44.

The square root of 5261536673 is about 72536.4506506901. The cubic root of 5261536673 is about 1739.2854635387.

The spelling of 5261536673 in words is "five billion, two hundred sixty-one million, five hundred thirty-six thousand, six hundred seventy-three".