51186734 has 4 divisors (see below), whose sum is σ = 76780104. Its totient is φ = 25593366.

The previous prime is 51186731. The next prime is 51186739. The reversal of 51186734 is 43768115.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×51186734³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51186694 and 51186703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51186731) 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 as a sum of consecutive naturals, namely, 12796682 + ... + 12796685.

It is an arithmetic number, because the mean of its divisors is an integer number (19195026).

Almost surely, 2^51186734 is an apocalyptic number.

51186734 is a deficient number, since it is larger than the sum of its proper divisors (25593370).

51186734 is a wasteful number, since it uses less digits than its factorization.

51186734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25593369.

The product of its digits is 20160, while the sum is 35.

The square root of 51186734 is about 7154.4904780145. The cubic root of 51186734 is about 371.2950334409.

The spelling of 51186734 in words is "fifty-one million, one hundred eighty-six thousand, seven hundred thirty-four".