52214520 has 64 divisors (see below), whose sum is σ = 158436000. Its totient is φ = 13764608.

The previous prime is 52214483. The next prime is 52214521. The reversal of 52214520 is 2541225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52214521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8236 + ... + 13124.

Almost surely, 2^52214520 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 52214520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79218000).

52214520 is an abundant number, since it is smaller than the sum of its proper divisors (106221480).

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

52214520 is a wasteful number, since it uses less digits than its factorization.

52214520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992 (or 4988 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52214520 is about 7225.9615277138. The cubic root of 52214520 is about 373.7636796222.

Adding to 52214520 its reverse (2541225), we get a palindrome (54755745).

The spelling of 52214520 in words is "fifty-two million, two hundred fourteen thousand, five hundred twenty".