53280557815785 has 16 divisors (see below), whose sum is σ = 87328133786880. Its totient is φ = 27723217074560.

The previous prime is 53280557815673. The next prime is 53280557815813. The reversal of 53280557815785 is 58751875508235.

It is not a de Polignac number, because 53280557815785 - 2¹⁵ = 53280557783017 is a prime.

It is a super-2 number, since 2×53280557815785² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43317526065 + ... + 43317527294.

It is an arithmetic number, because the mean of its divisors is an integer number (5458008361680).

Almost surely, 2^{53280557815785} is an apocalyptic number.

It is an amenable number.

53280557815785 is a deficient number, since it is larger than the sum of its proper divisors (34047575971095).

53280557815785 is a wasteful number, since it uses less digits than its factorization.

53280557815785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86635053408.

The product of its (nonzero) digits is 470400000, while the sum is 69.

The spelling of 53280557815785 in words is "fifty-three trillion, two hundred eighty billion, five hundred fifty-seven million, eight hundred fifteen thousand, seven hundred eighty-five".