5219966556 has 36 divisors (see below), whose sum is σ = 15079904112. Its totient is φ = 1491418944.

The previous prime is 5219966551. The next prime is 5219966567. The reversal of 5219966556 is 6556699125.

5219966556 is a `hidden beast` number, since 5 + 21 + 9 + 9 + 66 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×5219966556² = 54496101691517002272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5219966551) 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 11 ways as a sum of consecutive naturals, for example, 10356825 + ... + 10357328.

Almost surely, 2^5219966556 is an apocalyptic number.

It is an amenable number.

5219966556 is an abundant number, since it is smaller than the sum of its proper divisors (9859937556).

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

5219966556 is a wasteful number, since it uses less digits than its factorization.

5219966556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20714170 (or 20714165 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 54.

The square root of 5219966556 is about 72249.3360246307. The cubic root of 5219966556 is about 1734.6927903831.

The spelling of 5219966556 in words is "five billion, two hundred nineteen million, nine hundred sixty-six thousand, five hundred fifty-six".