52221006 has 96 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 15567552.

The previous prime is 52220999. The next prime is 52221011. The reversal of 52221006 is 60012225.

52221006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×52221006³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 52221006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 779385 + ... + 779451.

It is an arithmetic number, because the mean of its divisors is an integer number (1312740).

Almost surely, 2^52221006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52221006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63011520).

52221006 is an abundant number, since it is smaller than the sum of its proper divisors (73802034).

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

52221006 is a wasteful number, since it uses less digits than its factorization.

52221006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52221006 is about 7226.4103121813. The cubic root of 52221006 is about 373.7791550803.

It can be divided in two parts, 522 and 21006, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 52221006 in words is "fifty-two million, two hundred twenty-one thousand, six".