52272720 has 120 divisors (see below), whose sum is σ = 177964800. Its totient is φ = 13747968.

The previous prime is 52272709. The next prime is 52272733. The reversal of 52272720 is 2727225.

It is a happy number.

52272720 is a `hidden beast` number, since 522 + 72 + 72 + 0 = 666.

52272720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56421 + ... + 57339.

It is an arithmetic number, because the mean of its divisors is an integer number (1483040).

Almost surely, 2^52272720 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 52272720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88982400).

52272720 is an abundant number, since it is smaller than the sum of its proper divisors (125692080).

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

52272720 is a wasteful number, since it uses less digits than its factorization.

52272720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 52272720 is about 7229.9875518565. The cubic root of 52272720 is about 373.9024977705.

Adding to 52272720 its reverse (2727225), we get a palindrome (54999945).

The spelling of 52272720 in words is "fifty-two million, two hundred seventy-two thousand, seven hundred twenty".