51068713 has 4 divisors (see below), whose sum is σ = 53756560. Its totient is φ = 48380868.

The previous prime is 51068669. The next prime is 51068729. The reversal of 51068713 is 31786015.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31786015 = 5 ⋅6357203.

It is a cyclic number.

It is not a de Polignac number, because 51068713 - 2²¹ = 48971561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51068783) 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, 1343895 + ... + 1343932.

It is an arithmetic number, because the mean of its divisors is an integer number (13439140).

Almost surely, 2^51068713 is an apocalyptic number.

It is an amenable number.

51068713 is a deficient number, since it is larger than the sum of its proper divisors (2687847).

51068713 is a wasteful number, since it uses less digits than its factorization.

51068713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687846.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51068713 is about 7146.2376814657. The cubic root of 51068713 is about 371.0094494630.

The spelling of 51068713 in words is "fifty-one million, sixty-eight thousand, seven hundred thirteen".