51513663260535 has 96 divisors (see below), whose sum is σ = 101152561224960. Its totient is φ = 22259313603072.

The previous prime is 51513663260531. The next prime is 51513663260537. The reversal of 51513663260535 is 53506236631515.

It is not a de Polignac number, because 51513663260535 - 2² = 51513663260531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51513663260531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2023099 + ... + 10349891.

It is an arithmetic number, because the mean of its divisors is an integer number (1053672512760).

Almost surely, 2^{51513663260535} is an apocalyptic number.

51513663260535 is a deficient number, since it is larger than the sum of its proper divisors (49638897964425).

51513663260535 is a wasteful number, since it uses less digits than its factorization.

51513663260535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327277 (or 8327270 counting only the distinct ones).

The product of its (nonzero) digits is 7290000, while the sum is 51.

The spelling of 51513663260535 in words is "fifty-one trillion, five hundred thirteen billion, six hundred sixty-three million, two hundred sixty thousand, five hundred thirty-five".