57072272 has 20 divisors (see below), whose sum is σ = 111675516. Its totient is φ = 28252800.

The previous prime is 57072259. The next prime is 57072277. The reversal of 57072272 is 27227075.

57072272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44568976 + 12503296 = 6676^2 + 3536^2 .

It is not an unprimeable number, because it can be changed into a prime (57072277) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16043 + ... + 19274.

Almost surely, 2^57072272 is an apocalyptic number.

It is an amenable number.

57072272 is a deficient number, since it is larger than the sum of its proper divisors (54603244).

57072272 is a wasteful number, since it uses less digits than its factorization.

57072272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35426 (or 35420 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 57072272 is about 7554.6192491746. The cubic root of 57072272 is about 385.0126987435.

The spelling of 57072272 in words is "fifty-seven million, seventy-two thousand, two hundred seventy-two".