51005342 has 4 divisors (see below), whose sum is σ = 76508016. Its totient is φ = 25502670.

The previous prime is 51005309. The next prime is 51005371. The reversal of 51005342 is 24350015.

51005342 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 is a congruent number.

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, 12751334 + ... + 12751337.

It is an arithmetic number, because the mean of its divisors is an integer number (19127004).

Almost surely, 2^51005342 is an apocalyptic number.

51005342 is a deficient number, since it is larger than the sum of its proper divisors (25502674).

51005342 is a wasteful number, since it uses less digits than its factorization.

51005342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25502673.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51005342 is about 7141.8024335598. The cubic root of 51005342 is about 370.8559244692.

Adding to 51005342 its reverse (24350015), we get a palindrome (75355357).

The spelling of 51005342 in words is "fifty-one million, five thousand, three hundred forty-two".