52712220 has 48 divisors (see below), whose sum is σ = 161013888. Its totient is φ = 12778560.

The previous prime is 52712201. The next prime is 52712237. The reversal of 52712220 is 2221725.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39274 + ... + 40593.

It is an arithmetic number, because the mean of its divisors is an integer number (3354456).

Almost surely, 2^52712220 is an apocalyptic number.

It is an amenable number.

52712220 is an abundant number, since it is smaller than the sum of its proper divisors (108301668).

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

52712220 is a wasteful number, since it uses less digits than its factorization.

52712220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79890 (or 79888 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 52712220 is about 7260.3181748461. The cubic root of 52712220 is about 374.9474770884.

Adding to 52712220 its reverse (2221725), we get a palindrome (54933945).

The spelling of 52712220 in words is "fifty-two million, seven hundred twelve thousand, two hundred twenty".