51144253412501 has 16 divisors (see below), whose sum is σ = 54896676912000. Its totient is φ = 47476426103808.

The previous prime is 51144253412459. The next prime is 51144253412641. The reversal of 51144253412501 is 10521435244115.

51144253412501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51144253412501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144253312501) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29410916 + ... + 31101293.

It is an arithmetic number, because the mean of its divisors is an integer number (3431042307000).

Almost surely, 2^{51144253412501} is an apocalyptic number.

It is an amenable number.

51144253412501 is a deficient number, since it is larger than the sum of its proper divisors (3752423499499).

51144253412501 is a wasteful number, since it uses less digits than its factorization.

51144253412501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60512908.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 51144253412501 its reverse (10521435244115), we get a palindrome (61665688656616).

The spelling of 51144253412501 in words is "fifty-one trillion, one hundred forty-four billion, two hundred fifty-three million, four hundred twelve thousand, five hundred one".