51631215452503 has 8 divisors (see below), whose sum is σ = 56101830033920. Its totient is φ = 47335919090040.

The previous prime is 51631215452449. The next prime is 51631215452543. The reversal of 51631215452503 is 30525451213615.

51631215452503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51631215452503 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 51631215452503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51631215452543) 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 7 ways as a sum of consecutive naturals, for example, 43829554125 + ... + 43829555302.

It is an arithmetic number, because the mean of its divisors is an integer number (7012728754240).

Almost surely, 2^{51631215452503} is an apocalyptic number.

51631215452503 is a deficient number, since it is larger than the sum of its proper divisors (4470614581417).

51631215452503 is a wasteful number, since it uses less digits than its factorization.

51631215452503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87659109477.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 51631215452503 in words is "fifty-one trillion, six hundred thirty-one billion, two hundred fifteen million, four hundred fifty-two thousand, five hundred three".