51680234 has 4 divisors (see below), whose sum is σ = 77520354. Its totient is φ = 25840116.

The previous prime is 51680197. The next prime is 51680243. The reversal of 51680234 is 43208615.

51680234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 51079609 + 600625 = 7147^2 + 775^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51680197 and 51680206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12920057 + ... + 12920060.

Almost surely, 2^51680234 is an apocalyptic number.

51680234 is a deficient number, since it is larger than the sum of its proper divisors (25840120).

51680234 is a wasteful number, since it uses less digits than its factorization.

51680234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25840119.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 51680234 is about 7188.8965773615. The cubic root of 51680234 is about 372.4844586102.

Adding to 51680234 its reverse (43208615), we get a palindrome (94888849).

The spelling of 51680234 in words is "fifty-one million, six hundred eighty thousand, two hundred thirty-four".