5271816020 has 12 divisors (see below), whose sum is σ = 11070813684. Its totient is φ = 2108726400.

The previous prime is 5271815987. The next prime is 5271816023. The reversal of 5271816020 is 206181725.

It can be written as a sum of positive squares in 2 ways, for example, as 775845316 + 4495970704 = 27854^2 + 67052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5271816023) 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, 131795381 + ... + 131795420.

It is an arithmetic number, because the mean of its divisors is an integer number (922567807).

Almost surely, 2^5271816020 is an apocalyptic number.

It is an amenable number.

5271816020 is an abundant number, since it is smaller than the sum of its proper divisors (5798997664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5271816020 is a wasteful number, since it uses less digits than its factorization.

5271816020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263590810 (or 263590808 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 5271816020 is about 72607.2725007626. The cubic root of 5271816020 is about 1740.4173944718.

Adding to 5271816020 its reverse (206181725), we get a palindrome (5477997745).

The spelling of 5271816020 in words is "five billion, two hundred seventy-one million, eight hundred sixteen thousand, twenty".