67115057 has 2 divisors, whose sum is σ = 67115058. Its totient is φ = 67115056.

The previous prime is 67115051. The next prime is 67115063. The reversal of 67115057 is 75051176.

It is a balanced prime because it is at equal distance from previous prime (67115051) and next prime (67115063).

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 790321 = 8144^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 67115057 - 2¹⁸ = 66852913 is a prime.

It is a super-2 number, since 2×67115057² = 9008861752226498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67115051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33557528 + 33557529.

It is an arithmetic number, because the mean of its divisors is an integer number (33557529).

Almost surely, 2^67115057 is an apocalyptic number.

It is an amenable number.

67115057 is a deficient number, since it is larger than the sum of its proper divisors (1).

67115057 is an equidigital number, since it uses as much as digits as its factorization.

67115057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 67115057 is about 8192.3779820025. The cubic root of 67115057 is about 406.3871693958.

The spelling of 67115057 in words is "sixty-seven million, one hundred fifteen thousand, fifty-seven".