51386614 has 8 divisors (see below), whose sum is σ = 81614088. Its totient is φ = 24181920.

The previous prime is 51386611. The next prime is 51386617. The reversal of 51386614 is 41668315.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51386611) and next prime (51386617).

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1511371 = 51386614 / (5 + 1 + 3 + 8 + 6 + 6 + 1 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 51386614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51386611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755652 + ... + 755719.

It is an arithmetic number, because the mean of its divisors is an integer number (10201761).

Almost surely, 2^51386614 is an apocalyptic number.

51386614 is a deficient number, since it is larger than the sum of its proper divisors (30227474).

51386614 is a wasteful number, since it uses less digits than its factorization.

51386614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511390.

The product of its digits is 17280, while the sum is 34.

The square root of 51386614 is about 7168.4457171691. The cubic root of 51386614 is about 371.7776979523. Note that the first 3 decimals are identical.

The spelling of 51386614 in words is "fifty-one million, three hundred eighty-six thousand, six hundred fourteen".