57120067 has 2 divisors, whose sum is σ = 57120068. Its totient is φ = 57120066.

The previous prime is 57120047. The next prime is 57120071. The reversal of 57120067 is 76002175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57120067 - 2¹⁹ = 56595779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57120047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28560033 + 28560034.

It is an arithmetic number, because the mean of its divisors is an integer number (28560034).

Almost surely, 2^57120067 is an apocalyptic number.

57120067 is a deficient number, since it is larger than the sum of its proper divisors (1).

57120067 is an equidigital number, since it uses as much as digits as its factorization.

57120067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 57120067 is about 7557.7818835952. The cubic root of 57120067 is about 385.1201446588.

The spelling of 57120067 in words is "fifty-seven million, one hundred twenty thousand, sixty-seven".