52210620 has 144 divisors (see below), whose sum is σ = 197503488. Its totient is φ = 10846080.

The previous prime is 52210619. The next prime is 52210657. The reversal of 52210620 is 2601225.

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

It is a junction number, because it is equal to n+sod(n) for n = 52210593 and 52210602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11977 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (1371552).

Almost surely, 2^52210620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52210620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98751744).

52210620 is an abundant number, since it is smaller than the sum of its proper divisors (145292868).

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

52210620 is a wasteful number, since it uses less digits than its factorization.

52210620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800 (or 3795 counting only the distinct ones).

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

The square root of 52210620 is about 7225.6916623947. The cubic root of 52210620 is about 373.7543736881.

Adding to 52210620 its reverse (2601225), we get a palindrome (54811845).

The spelling of 52210620 in words is "fifty-two million, two hundred ten thousand, six hundred twenty".