5220649513 has 36 divisors (see below), whose sum is σ = 5867910540. Its totient is φ = 4636929024.

The previous prime is 5220649481. The next prime is 5220649517. The reversal of 5220649513 is 3159460225.

It can be written as a sum of positive squares in 6 ways, for example, as 29735209 + 5190914304 = 5453^2 + 72048^2 .

It is not a de Polignac number, because 5220649513 - 2⁵ = 5220649481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220649517) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53821081 + ... + 53821177.

It is an arithmetic number, because the mean of its divisors is an integer number (162997515).

Almost surely, 2^5220649513 is an apocalyptic number.

5220649513 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

5220649513 is a deficient number, since it is larger than the sum of its proper divisors (647261027).

5220649513 is an equidigital number, since it uses as much as digits as its factorization.

5220649513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 5220649513 is about 72254.0622595021. The cubic root of 5220649513 is about 1734.7684402241.

The spelling of 5220649513 in words is "five billion, two hundred twenty million, six hundred forty-nine thousand, five hundred thirteen".