51350242 has 16 divisors (see below), whose sum is σ = 79869240. Its totient is φ = 24731392.

The previous prime is 51350239. The next prime is 51350287. The reversal of 51350242 is 24205315.

51350242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50708641 + 641601 = 7121^2 + 801^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 33648 + ... + 35140.

Almost surely, 2^51350242 is an apocalyptic number.

51350242 is a deficient number, since it is larger than the sum of its proper divisors (28518998).

51350242 is a wasteful number, since it uses less digits than its factorization.

51350242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51350242 is about 7165.9083164662. The cubic root of 51350242 is about 371.6899611596.

Adding to 51350242 its reverse (24205315), we get a palindrome (75555557).

The spelling of 51350242 in words is "fifty-one million, three hundred fifty thousand, two hundred forty-two".