5221266144 has 48 divisors (see below), whose sum is σ = 13710250512. Its totient is φ = 1739859968.

The previous prime is 5221266031. The next prime is 5221266187. The reversal of 5221266144 is 4416621225.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×5221266144³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378472 + ... + 392024.

It is an arithmetic number, because the mean of its divisors is an integer number (285630219).

Almost surely, 2^5221266144 is an apocalyptic number.

It is an amenable number.

5221266144 is an abundant number, since it is smaller than the sum of its proper divisors (8488984368).

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

5221266144 is a wasteful number, since it uses less digits than its factorization.

5221266144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17579 (or 17571 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 5221266144 is about 72258.3292361510. The cubic root of 5221266144 is about 1734.8367375935.

Adding to 5221266144 its reverse (4416621225), we get a palindrome (9637887369).

The spelling of 5221266144 in words is "five billion, two hundred twenty-one million, two hundred sixty-six thousand, one hundred forty-four".