51680342 has 64 divisors (see below), whose sum is σ = 98496000. Its totient is φ = 19844352.

The previous prime is 51680327. The next prime is 51680347. The reversal of 51680342 is 24308615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51680347) 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 31 ways as a sum of consecutive naturals, for example, 580634 + ... + 580722.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^51680342 is an apocalyptic number.

51680342 is a deficient number, since it is larger than the sum of its proper divisors (46815658).

51680342 is a wasteful number, since it uses less digits than its factorization.

51680342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

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

The square root of 51680342 is about 7188.9040889415. The cubic root of 51680342 is about 372.4847180794.

Adding to 51680342 its reverse (24308615), we get a palindrome (75988957).

The spelling of 51680342 in words is "fifty-one million, six hundred eighty thousand, three hundred forty-two".