51051010503 has 8 divisors (see below), whose sum is σ = 69000452848. Its totient is φ = 33567787584.

The previous prime is 51051010501. The next prime is 51051010541. The reversal of 51051010503 is 30501015015.

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

It is not a de Polignac number, because 51051010503 - 2¹ = 51051010501 is a prime.

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 51051010503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51051010501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116554600 + ... + 116555037.

It is an arithmetic number, because the mean of its divisors is an integer number (8625056606).

Almost surely, 2^51051010503 is an apocalyptic number.

51051010503 is a deficient number, since it is larger than the sum of its proper divisors (17949442345).

51051010503 is a wasteful number, since it uses less digits than its factorization.

51051010503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233109713.

The product of its (nonzero) digits is 375, while the sum is 21.

Adding to 51051010503 its reverse (30501015015), we get a palindrome (81552025518).

The spelling of 51051010503 in words is "fifty-one billion, fifty-one million, ten thousand, five hundred three".