54597775685 has 4 divisors (see below), whose sum is σ = 65517330828. Its totient is φ = 43678220544.

The previous prime is 54597775619. The next prime is 54597775691. The reversal of 54597775685 is 58657779545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33211053121 + 21386722564 = 182239^2 + 146242^2 .

It is a cyclic number.

It is not a de Polignac number, because 54597775685 - 2¹⁰ = 54597774661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5459777564 + ... + 5459777573.

It is an arithmetic number, because the mean of its divisors is an integer number (16379332707).

Almost surely, 2^54597775685 is an apocalyptic number.

It is an amenable number.

54597775685 is a deficient number, since it is larger than the sum of its proper divisors (10919555143).

54597775685 is a wasteful number, since it uses less digits than its factorization.

54597775685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919555142.

The product of its digits is 370440000, while the sum is 68.

The spelling of 54597775685 in words is "fifty-four billion, five hundred ninety-seven million, seven hundred seventy-five thousand, six hundred eighty-five".