57220259 has 2 divisors, whose sum is σ = 57220260. Its totient is φ = 57220258.

The previous prime is 57220217. The next prime is 57220271. The reversal of 57220259 is 95202275.

It is a happy number.

57220259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57220259 - 2⁸ = 57220003 is a prime.

It is not a weakly prime, because it can be changed into another prime (57223259) 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, 28610129 + 28610130.

It is an arithmetic number, because the mean of its divisors is an integer number (28610130).

Almost surely, 2^57220259 is an apocalyptic number.

57220259 is a deficient number, since it is larger than the sum of its proper divisors (1).

57220259 is an equidigital number, since it uses as much as digits as its factorization.

57220259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 57220259 is about 7564.4073792995. The cubic root of 57220259 is about 385.3451876885.

The spelling of 57220259 in words is "fifty-seven million, two hundred twenty thousand, two hundred fifty-nine".