52557072 has 20 divisors (see below), whose sum is σ = 135772560. Its totient is φ = 17519008.

The previous prime is 52557061. The next prime is 52557073. The reversal of 52557072 is 27075525.

It is not an unprimeable number, because it can be changed into a prime (52557073) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 547422 + ... + 547517.

It is an arithmetic number, because the mean of its divisors is an integer number (6788628).

Almost surely, 2^52557072 is an apocalyptic number.

It is an amenable number.

52557072 is an abundant number, since it is smaller than the sum of its proper divisors (83215488).

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

52557072 is a wasteful number, since it uses less digits than its factorization.

52557072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094950 (or 1094944 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 52557072 is about 7249.6256455075. The cubic root of 52557072 is about 374.5792543270.

The spelling of 52557072 in words is "fifty-two million, five hundred fifty-seven thousand, seventy-two".