51651774652755 has 16 divisors (see below), whose sum is σ = 83638536307200. Its totient is φ = 27215714193888.

The previous prime is 51651774652697. The next prime is 51651774652759. The reversal of 51651774652755 is 55725647715615.

It is not a de Polignac number, because 51651774652755 - 2¹⁶ = 51651774587219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51651774652759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20743683355 + ... + 20743685844.

It is an arithmetic number, because the mean of its divisors is an integer number (5227408519200).

Almost surely, 2^{51651774652755} is an apocalyptic number.

51651774652755 is a deficient number, since it is larger than the sum of its proper divisors (31986761654445).

51651774652755 is a wasteful number, since it uses less digits than its factorization.

51651774652755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41487369290.

The product of its digits is 308700000, while the sum is 66.

The spelling of 51651774652755 in words is "fifty-one trillion, six hundred fifty-one billion, seven hundred seventy-four million, six hundred fifty-two thousand, seven hundred fifty-five".