52716220 has 24 divisors (see below), whose sum is σ = 112223664. Its totient is φ = 20797056.

The previous prime is 52716211. The next prime is 52716263. The reversal of 52716220 is 2261725.

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, 16594 + ... + 19513.

It is an arithmetic number, because the mean of its divisors is an integer number (4675986).

Almost surely, 2^52716220 is an apocalyptic number.

It is an amenable number.

52716220 is an abundant number, since it is smaller than the sum of its proper divisors (59507444).

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

52716220 is a wasteful number, since it uses less digits than its factorization.

52716220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36189 (or 36187 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 52716220 is about 7260.5936396413. The cubic root of 52716220 is about 374.9569609865.

Adding to 52716220 its reverse (2261725), we get a palindrome (54977945).

The spelling of 52716220 in words is "fifty-two million, seven hundred sixteen thousand, two hundred twenty".