51304342 has 4 divisors (see below), whose sum is σ = 76956516. Its totient is φ = 25652170.

The previous prime is 51304339. The next prime is 51304381. The reversal of 51304342 is 24340315.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12826084 + ... + 12826087.

It is an arithmetic number, because the mean of its divisors is an integer number (19239129).

Almost surely, 2^51304342 is an apocalyptic number.

51304342 is a deficient number, since it is larger than the sum of its proper divisors (25652174).

51304342 is a wasteful number, since it uses less digits than its factorization.

51304342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25652173.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 51304342 is about 7162.7049359861. The cubic root of 51304342 is about 371.5791817076.

Adding to 51304342 its reverse (24340315), we get a palindrome (75644657).

The spelling of 51304342 in words is "fifty-one million, three hundred four thousand, three hundred forty-two".