51245532143503 has 8 divisors (see below), whose sum is σ = 52014317342000. Its totient is φ = 50476862430720.

The previous prime is 51245532143467. The next prime is 51245532143569. The reversal of 51245532143503 is 30534123554215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51245532143503 - 2¹⁷ = 51245532012431 is a prime.

It is a super-2 number, since 2×51245532143503² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51245532143503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51245532143303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27977088 + ... + 29752453.

It is an arithmetic number, because the mean of its divisors is an integer number (6501789667750).

Almost surely, 2^{51245532143503} is an apocalyptic number.

51245532143503 is a deficient number, since it is larger than the sum of its proper divisors (768785198497).

51245532143503 is a wasteful number, since it uses less digits than its factorization.

51245532143503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57742857.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 51245532143503 its reverse (30534123554215), we get a palindrome (81779655697718).

The spelling of 51245532143503 in words is "fifty-one trillion, two hundred forty-five billion, five hundred thirty-two million, one hundred forty-three thousand, five hundred three".