67250247 has 4 divisors (see below), whose sum is σ = 89667000. Its totient is φ = 44833496.

The previous prime is 67250233. The next prime is 67250257. The reversal of 67250247 is 74205276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67250247 - 2⁴ = 67250231 is a prime.

It is a super-2 number, since 2×67250247² = 9045191443122018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67250257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11208372 + ... + 11208377.

It is an arithmetic number, because the mean of its divisors is an integer number (22416750).

Almost surely, 2^67250247 is an apocalyptic number.

67250247 is a deficient number, since it is larger than the sum of its proper divisors (22416753).

67250247 is a wasteful number, since it uses less digits than its factorization.

67250247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22416752.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 67250247 is about 8200.6247932703. The cubic root of 67250247 is about 406.6598485673.

The spelling of 67250247 in words is "sixty-seven million, two hundred fifty thousand, two hundred forty-seven".