67245005 has 4 divisors (see below), whose sum is σ = 80694012. Its totient is φ = 53796000.

The previous prime is 67244999. The next prime is 67245029. The reversal of 67245005 is 50054276.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13823524 + 53421481 = 3718^2 + 7309^2 .

It is not a de Polignac number, because 67245005 - 2⁶ = 67244941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6724496 + ... + 6724505.

It is an arithmetic number, because the mean of its divisors is an integer number (20173503).

Almost surely, 2^67245005 is an apocalyptic number.

It is an amenable number.

67245005 is a deficient number, since it is larger than the sum of its proper divisors (13449007).

67245005 is a wasteful number, since it uses less digits than its factorization.

67245005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449006.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 67245005 is about 8200.3051772480. The cubic root of 67245005 is about 406.6492822304.

The spelling of 67245005 in words is "sixty-seven million, two hundred forty-five thousand, five".