52541220 has 48 divisors (see below), whose sum is σ = 155772288. Its totient is φ = 13186560.

The previous prime is 52541219. The next prime is 52541231. The reversal of 52541220 is 2214525.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24736 + ... + 26775.

It is an arithmetic number, because the mean of its divisors is an integer number (3245256).

Almost surely, 2^52541220 is an apocalyptic number.

It is an amenable number.

52541220 is an abundant number, since it is smaller than the sum of its proper divisors (103231068).

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

52541220 is a wasteful number, since it uses less digits than its factorization.

52541220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51540 (or 51538 counting only the distinct ones).

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

The square root of 52541220 is about 7248.5322652245. The cubic root of 52541220 is about 374.5415909692.

Adding to 52541220 its reverse (2214525), we get a palindrome (54755745).

The spelling of 52541220 in words is "fifty-two million, five hundred forty-one thousand, two hundred twenty".