51386713 has 8 divisors (see below), whose sum is σ = 58796928. Its totient is φ = 43993824.

The previous prime is 51386707. The next prime is 51386717. The reversal of 51386713 is 31768315.

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

It is not a de Polignac number, because 51386713 - 2⁹ = 51386201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51386717) 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, 2820 + ... + 10522.

It is an arithmetic number, because the mean of its divisors is an integer number (7349616).

Almost surely, 2^51386713 is an apocalyptic number.

It is an amenable number.

51386713 is a deficient number, since it is larger than the sum of its proper divisors (7410215).

51386713 is an equidigital number, since it uses as much as digits as its factorization.

51386713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663.

The product of its digits is 15120, while the sum is 34.

The square root of 51386713 is about 7168.4526224284. The cubic root of 51386713 is about 371.7779367042. Note that the first 3 decimals are identical.

The spelling of 51386713 in words is "fifty-one million, three hundred eighty-six thousand, seven hundred thirteen".