68051 has 4 divisors (see below), whose sum is σ = 72072. Its totient is φ = 64032.

The previous prime is 68041. The next prime is 68053. The reversal of 68051 is 15086.

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 68051 - 2⁶ = 67987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68053) 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, 1985 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (18018).

2⁶⁸⁰⁵¹ is an apocalyptic number.

68051 is a deficient number, since it is larger than the sum of its proper divisors (4021).

68051 is a wasteful number, since it uses less digits than its factorization.

68051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 68051 is about 260.8658659158. The cubic root of 68051 is about 40.8267526070.

The spelling of 68051 in words is "sixty-eight thousand, fifty-one".