51853540587 has 16 divisors (see below), whose sum is σ = 70839132672. Its totient is φ = 33723280800.

The previous prime is 51853540559. The next prime is 51853540631. The reversal of 51853540587 is 78504535815.

It is not a de Polignac number, because 51853540587 - 2³⁰ = 50779798763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51853540507) 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 15 ways as a sum of consecutive naturals, for example, 555664 + ... + 642237.

It is an arithmetic number, because the mean of its divisors is an integer number (4427445792).

Almost surely, 2^51853540587 is an apocalyptic number.

51853540587 is a deficient number, since it is larger than the sum of its proper divisors (18985592085).

51853540587 is a wasteful number, since it uses less digits than its factorization.

51853540587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198258.

The product of its (nonzero) digits is 3360000, while the sum is 51.

The spelling of 51853540587 in words is "fifty-one billion, eight hundred fifty-three million, five hundred forty thousand, five hundred eighty-seven".