67052681 has 4 divisors (see below), whose sum is σ = 67131600. Its totient is φ = 66973764.

The previous prime is 67052677. The next prime is 67052701. The reversal of 67052681 is 18625076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67052681 - 2² = 67052677 is a prime.

It is a super-2 number, since 2×67052681² = 8992124058575522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67052281) 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, 38171 + ... + 39888.

It is an arithmetic number, because the mean of its divisors is an integer number (16782900).

Almost surely, 2^67052681 is an apocalyptic number.

It is an amenable number.

67052681 is a deficient number, since it is larger than the sum of its proper divisors (78919).

67052681 is an equidigital number, since it uses as much as digits as its factorization.

67052681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78918.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 67052681 is about 8188.5701438041. The cubic root of 67052681 is about 406.2612331095.

The spelling of 67052681 in words is "sixty-seven million, fifty-two thousand, six hundred eighty-one".