53120466565 has 8 divisors (see below), whose sum is σ = 63780933528. Its totient is φ = 42472124160.

The previous prime is 53120466533. The next prime is 53120466599. The reversal of 53120466565 is 56566402135.

It can be written as a sum of positive squares in 4 ways, for example, as 2276530369 + 50843936196 = 47713^2 + 225486^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53120466565 - 2⁵ = 53120466533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021496 + ... + 3039025.

It is an arithmetic number, because the mean of its divisors is an integer number (7972616691).

Almost surely, 2^53120466565 is an apocalyptic number.

It is an amenable number.

53120466565 is a deficient number, since it is larger than the sum of its proper divisors (10660466963).

53120466565 is a wasteful number, since it uses less digits than its factorization.

53120466565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062279.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 53120466565 in words is "fifty-three billion, one hundred twenty million, four hundred sixty-six thousand, five hundred sixty-five".