67255987 has 2 divisors, whose sum is σ = 67255988. Its totient is φ = 67255986.

The previous prime is 67255963. The next prime is 67256011. The reversal of 67255987 is 78955276.

It is a balanced prime because it is at equal distance from previous prime (67255963) and next prime (67256011).

It is a cyclic number.

It is not a de Polignac number, because 67255987 - 2¹⁹ = 66731699 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67255987.

It is not a weakly prime, because it can be changed into another prime (67255907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33627993 + 33627994.

It is an arithmetic number, because the mean of its divisors is an integer number (33627994).

Almost surely, 2^67255987 is an apocalyptic number.

67255987 is a deficient number, since it is larger than the sum of its proper divisors (1).

67255987 is an equidigital number, since it uses as much as digits as its factorization.

67255987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 49.

The square root of 67255987 is about 8200.9747591369. The cubic root of 67255987 is about 406.6714180967.

The spelling of 67255987 in words is "sixty-seven million, two hundred fifty-five thousand, nine hundred eighty-seven".