5271509813 has 4 divisors (see below), whose sum is σ = 5303850528. Its totient is φ = 5239169100.

The previous prime is 5271509791. The next prime is 5271509819. The reversal of 5271509813 is 3189051725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5271509813 - 2³⁰ = 4197767989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5271509819) 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, 16170113 + ... + 16170438.

It is an arithmetic number, because the mean of its divisors is an integer number (1325962632).

Almost surely, 2^5271509813 is an apocalyptic number.

It is an amenable number.

5271509813 is a deficient number, since it is larger than the sum of its proper divisors (32340715).

5271509813 is a wasteful number, since it uses less digits than its factorization.

5271509813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32340714.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 5271509813 is about 72605.1638177341. The cubic root of 5271509813 is about 1740.3836971459.

The spelling of 5271509813 in words is "five billion, two hundred seventy-one million, five hundred nine thousand, eight hundred thirteen".