51786373 has 8 divisors (see below), whose sum is σ = 53652600. Its totient is φ = 49925568.

The previous prime is 51786359. The next prime is 51786379. The reversal of 51786373 is 37368715.

It can be written as a sum of positive squares in 4 ways, for example, as 39162564 + 12623809 = 6258^2 + 3553^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51786373 - 2²¹ = 49689221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51786379) 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 7 ways as a sum of consecutive naturals, for example, 34915 + ... + 36367.

It is an arithmetic number, because the mean of its divisors is an integer number (6706575).

Almost surely, 2^51786373 is an apocalyptic number.

It is an amenable number.

51786373 is a deficient number, since it is larger than the sum of its proper divisors (1866227).

51786373 is a wasteful number, since it uses less digits than its factorization.

51786373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its digits is 105840, while the sum is 40.

The square root of 51786373 is about 7196.2749391612. The cubic root of 51786373 is about 372.7392826210.

The spelling of 51786373 in words is "fifty-one million, seven hundred eighty-six thousand, three hundred seventy-three".