51751665500293 has 4 divisors (see below), whose sum is σ = 56456362363968. Its totient is φ = 47046968636620.

The previous prime is 51751665500291. The next prime is 51751665500321. The reversal of 51751665500293 is 39200556615715.

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 a cyclic number.

It is not a de Polignac number, because 51751665500293 - 2¹ = 51751665500291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51751665500291) 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, 2352348431821 + ... + 2352348431842.

It is an arithmetic number, because the mean of its divisors is an integer number (14114090590992).

Almost surely, 2^{51751665500293} is an apocalyptic number.

It is an amenable number.

51751665500293 is a deficient number, since it is larger than the sum of its proper divisors (4704696863675).

51751665500293 is a wasteful number, since it uses less digits than its factorization.

51751665500293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704696863674.

The product of its (nonzero) digits is 8505000, while the sum is 55.

The spelling of 51751665500293 in words is "fifty-one trillion, seven hundred fifty-one billion, six hundred sixty-five million, five hundred thousand, two hundred ninety-three".