68585567 has 2 divisors, whose sum is σ = 68585568. Its totient is φ = 68585566.

The previous prime is 68585527. The next prime is 68585593. The reversal of 68585567 is 76558586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68585567 - 2⁸ = 68585311 is a prime.

It is a super-2 number, since 2×68585567² = 9407960001422978, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68585527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34292783 + 34292784.

It is an arithmetic number, because the mean of its divisors is an integer number (34292784).

Almost surely, 2^68585567 is an apocalyptic number.

68585567 is a deficient number, since it is larger than the sum of its proper divisors (1).

68585567 is an equidigital number, since it uses as much as digits as its factorization.

68585567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016000, while the sum is 50.

The square root of 68585567 is about 8281.6403568375. The cubic root of 68585567 is about 409.3337722559. Note that the first 3 decimals are identical.

The spelling of 68585567 in words is "sixty-eight million, five hundred eighty-five thousand, five hundred sixty-seven".