67473251 has 2 divisors, whose sum is σ = 67473252. Its totient is φ = 67473250.

The previous prime is 67473239. The next prime is 67473337. The reversal of 67473251 is 15237476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67473251 - 2¹⁰ = 67472227 is a prime.

It is not a weakly prime, because it can be changed into another prime (67470251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33736625 + 33736626.

It is an arithmetic number, because the mean of its divisors is an integer number (33736626).

Almost surely, 2^67473251 is an apocalyptic number.

67473251 is a deficient number, since it is larger than the sum of its proper divisors (1).

67473251 is an equidigital number, since it uses as much as digits as its factorization.

67473251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 67473251 is about 8214.2103089707. The cubic root of 67473251 is about 407.1088517115.

The spelling of 67473251 in words is "sixty-seven million, four hundred seventy-three thousand, two hundred fifty-one".