51081734 has 16 divisors (see below), whose sum is σ = 83840400. Its totient is φ = 23148960.

The previous prime is 51081733. The next prime is 51081739. The reversal of 51081734 is 43718015.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51081697 and 51081706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51081733) 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, 4352 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (5240025).

Almost surely, 2^51081734 is an apocalyptic number.

51081734 is a deficient number, since it is larger than the sum of its proper divisors (32758666).

51081734 is a wasteful number, since it uses less digits than its factorization.

51081734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7015.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 51081734 is about 7147.1486622289. The cubic root of 51081734 is about 371.0409789014.

Adding to 51081734 its reverse (43718015), we get a palindrome (94799749).

It can be divided in two parts, 51081 and 734, that added together give a palindrome (51815).

The spelling of 51081734 in words is "fifty-one million, eighty-one thousand, seven hundred thirty-four".