57220193 has 2 divisors, whose sum is σ = 57220194. Its totient is φ = 57220192.

The previous prime is 57220187. The next prime is 57220201. The reversal of 57220193 is 39102275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57032704 + 187489 = 7552^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 57220193 - 2⁶ = 57220129 is a prime.

It is not a weakly prime, because it can be changed into another prime (57220693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28610096 + 28610097.

It is an arithmetic number, because the mean of its divisors is an integer number (28610097).

Almost surely, 2^57220193 is an apocalyptic number.

It is an amenable number.

57220193 is a deficient number, since it is larger than the sum of its proper divisors (1).

57220193 is an equidigital number, since it uses as much as digits as its factorization.

57220193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 57220193 is about 7564.4030167621. The cubic root of 57220193 is about 385.3450395312.

The spelling of 57220193 in words is "fifty-seven million, two hundred twenty thousand, one hundred ninety-three".