57225045161 has 2 divisors, whose sum is σ = 57225045162. Its totient is φ = 57225045160.

The previous prime is 57225045127. The next prime is 57225045173. The reversal of 57225045161 is 16154052275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30597006400 + 26628038761 = 174920^2 + 163181^2 .

It is a cyclic number.

It is not a de Polignac number, because 57225045161 - 2¹⁰ = 57225044137 is a prime.

It is not a weakly prime, because it can be changed into another prime (57225044161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28612522580 + 28612522581.

It is an arithmetic number, because the mean of its divisors is an integer number (28612522581).

Almost surely, 2^57225045161 is an apocalyptic number.

It is an amenable number.

57225045161 is a deficient number, since it is larger than the sum of its proper divisors (1).

57225045161 is an equidigital number, since it uses as much as digits as its factorization.

57225045161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 57225045161 in words is "fifty-seven billion, two hundred twenty-five million, forty-five thousand, one hundred sixty-one".