51004143 has 12 divisors (see below), whose sum is σ = 74922120. Its totient is φ = 33426096.

The previous prime is 51004103. The next prime is 51004153. The reversal of 51004143 is 34140015.

It is a happy number.

51004143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51004143 - 2¹⁶ = 50938607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51004103) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 47496 + ... + 48557.

It is an arithmetic number, because the mean of its divisors is an integer number (6243510).

Almost surely, 2^51004143 is an apocalyptic number.

51004143 is a deficient number, since it is larger than the sum of its proper divisors (23917977).

51004143 is a wasteful number, since it uses less digits than its factorization.

51004143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96118 (or 96115 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51004143 is about 7141.7184906716. The cubic root of 51004143 is about 370.8530185008.

Adding to 51004143 its reverse (34140015), we get a palindrome (85144158).

The spelling of 51004143 in words is "fifty-one million, four thousand, one hundred forty-three".