67253813 has 8 divisors (see below), whose sum is σ = 75898080. Its totient is φ = 59031280.

The previous prime is 67253803. The next prime is 67253831. The reversal of 67253813 is 31835276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67253813 - 2¹⁸ = 66991669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67253803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105095 + ... + 105732.

It is an arithmetic number, because the mean of its divisors is an integer number (9487260).

Almost surely, 2^67253813 is an apocalyptic number.

It is an amenable number.

67253813 is a deficient number, since it is larger than the sum of its proper divisors (8644267).

67253813 is a wasteful number, since it uses less digits than its factorization.

67253813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210867.

The product of its digits is 30240, while the sum is 35.

The square root of 67253813 is about 8200.8422128462. The cubic root of 67253813 is about 406.6670362653.

The spelling of 67253813 in words is "sixty-seven million, two hundred fifty-three thousand, eight hundred thirteen".