51755523842761 has 4 divisors (see below), whose sum is σ = 51755577696000. Its totient is φ = 51755469989524.

The previous prime is 51755523842749. The next prime is 51755523842773. The reversal of 51755523842761 is 16724832555715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (51755523842749) and next prime (51755523842773).

It is a cyclic number.

It is not a de Polignac number, because 51755523842761 - 2³⁷ = 51618084889289 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 51755523842761.

It is not an unprimeable number, because it can be changed into a prime (51755523842161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25458361 + ... + 27416038.

It is an arithmetic number, because the mean of its divisors is an integer number (12938894424000).

Almost surely, 2^{51755523842761} is an apocalyptic number.

It is an amenable number.

51755523842761 is a deficient number, since it is larger than the sum of its proper divisors (53853239).

51755523842761 is an equidigital number, since it uses as much as digits as its factorization.

51755523842761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53853238.

The product of its digits is 70560000, while the sum is 61.

The spelling of 51755523842761 in words is "fifty-one trillion, seven hundred fifty-five billion, five hundred twenty-three million, eight hundred forty-two thousand, seven hundred sixty-one".