5223985820 has 24 divisors (see below), whose sum is σ = 11017463184. Its totient is φ = 2080624256.

The previous prime is 5223985807. The next prime is 5223985829. The reversal of 5223985820 is 285893225.

It is a happy number.

It is a super-2 number, since 2×5223985820² = 54580055695122144800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5223985829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555854 + ... + 565173.

It is an arithmetic number, because the mean of its divisors is an integer number (459060966).

Almost surely, 2^5223985820 is an apocalyptic number.

It is an amenable number.

5223985820 is an abundant number, since it is smaller than the sum of its proper divisors (5793477364).

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

5223985820 is a wasteful number, since it uses less digits than its factorization.

5223985820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121269 (or 1121267 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 5223985820 is about 72277.1459038056. The cubic root of 5223985820 is about 1735.1379017642.

The spelling of 5223985820 in words is "five billion, two hundred twenty-three million, nine hundred eighty-five thousand, eight hundred twenty".