51503042139844 has 27 divisors (see below), whose sum is σ = 93132346193103. Its totient is φ = 24920611545000.

The previous prime is 51503042139839. The next prime is 51503042139851. The reversal of 51503042139844 is 44893124030515.

The square root of 51503042139844 is 7176562.

It is a perfect power (a square), and thus also a powerful number.

51503042139844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 444888969 + ... + 445004719.

Almost surely, 2^{51503042139844} is an apocalyptic number.

51503042139844 is the 7176562-nd square number.

It is an amenable number.

51503042139844 is a deficient number, since it is larger than the sum of its proper divisors (41629304053259).

51503042139844 is an frugal number, since it uses more digits than its factorization.

51503042139844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231568 (or 115784 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 51503042139844 in words is "fifty-one trillion, five hundred three billion, forty-two million, one hundred thirty-nine thousand, eight hundred forty-four".