5263432081 has 4 divisors (see below), whose sum is σ = 5264036532. Its totient is φ = 5262827632.

The previous prime is 5263432073. The next prime is 5263432087. The reversal of 5263432081 is 1802343625.

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 4517049681 + 746382400 = 67209^2 + 27320^2 .

It is a cyclic number.

It is not a de Polignac number, because 5263432081 - 2³ = 5263432073 is a prime.

It is a super-2 number, since 2×5263432081² = 55407434542599981122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5263432087) 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, 288970 + ... + 306643.

It is an arithmetic number, because the mean of its divisors is an integer number (1316009133).

Almost surely, 2^5263432081 is an apocalyptic number.

It is an amenable number.

5263432081 is a deficient number, since it is larger than the sum of its proper divisors (604451).

5263432081 is an equidigital number, since it uses as much as digits as its factorization.

5263432081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604450.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 5263432081 is about 72549.5146847999. The cubic root of 5263432081 is about 1739.4942909850.

The spelling of 5263432081 in words is "five billion, two hundred sixty-three million, four hundred thirty-two thousand, eighty-one".