51286194 has 12 divisors (see below), whose sum is σ = 111120126. Its totient is φ = 17095392.

The previous prime is 51286189. The next prime is 51286199. The reversal of 51286194 is 49168215.

It is an interprime number because it is at equal distance from previous prime (51286189) and next prime (51286199).

It can be written as a sum of positive squares in only one way, i.e., 44395569 + 6890625 = 6663^2 + 2625^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51286199) 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 5 ways as a sum of consecutive naturals, for example, 1424599 + ... + 1424634.

Almost surely, 2^51286194 is an apocalyptic number.

51286194 is an abundant number, since it is smaller than the sum of its proper divisors (59833932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51286194 is a wasteful number, since it uses less digits than its factorization.

51286194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849241 (or 2849238 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 51286194 is about 7161.4379840923. The cubic root of 51286194 is about 371.5353633613.

The spelling of 51286194 in words is "fifty-one million, two hundred eighty-six thousand, one hundred ninety-four".