57220201 has 2 divisors, whose sum is σ = 57220202. Its totient is φ = 57220200.

The previous prime is 57220193. The next prime is 57220213. The reversal of 57220201 is 10202275.

57220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48664576 + 8555625 = 6976^2 + 2925^2 .

It is a cyclic number.

It is not a de Polignac number, because 57220201 - 2³ = 57220193 is a prime.

It is not a weakly prime, because it can be changed into another prime (57220271) 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 as a sum of consecutive naturals, namely, 28610100 + 28610101.

It is an arithmetic number, because the mean of its divisors is an integer number (28610101).

Almost surely, 2^57220201 is an apocalyptic number.

It is an amenable number.

57220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

57220201 is an equidigital number, since it uses as much as digits as its factorization.

57220201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 57220201 is about 7564.4035455547. The cubic root of 57220201 is about 385.3450574897.

Adding to 57220201 its reverse (10202275), we get a palindrome (67422476).

The spelling of 57220201 in words is "fifty-seven million, two hundred twenty thousand, two hundred one".