51625087503 has 16 divisors (see below), whose sum is σ = 75141810432. Its totient is φ = 31266776000.

The previous prime is 51625087469. The next prime is 51625087523. The reversal of 51625087503 is 30578052615.

It is a cyclic number.

It is not a de Polignac number, because 51625087503 - 2¹⁰ = 51625086479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51625087523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479283 + ... + 577028.

It is an arithmetic number, because the mean of its divisors is an integer number (4696363152).

Almost surely, 2^51625087503 is an apocalyptic number.

51625087503 is a deficient number, since it is larger than the sum of its proper divisors (23516722929).

51625087503 is a wasteful number, since it uses less digits than its factorization.

51625087503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057806.

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 51625087503 in words is "fifty-one billion, six hundred twenty-five million, eighty-seven thousand, five hundred three".