53835551685 has 24 divisors (see below), whose sum is σ = 93579332184. Its totient is φ = 28630947840.

The previous prime is 53835551683. The next prime is 53835551687. The reversal of 53835551685 is 58615553835.

53835551685 is a `hidden beast` number, since 5 + 3 + 8 + 3 + 5 + 551 + 6 + 85 = 666.

It is an interprime number because it is at equal distance from previous prime (53835551683) and next prime (53835551687).

It can be written as a sum of positive squares in 4 ways, for example, as 18955507041 + 34880044644 = 137679^2 + 186762^2 .

It is not a de Polignac number, because 53835551685 - 2¹ = 53835551683 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53835551681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1678656 + ... + 1710425.

It is an arithmetic number, because the mean of its divisors is an integer number (3899138841).

Almost surely, 2^53835551685 is an apocalyptic number.

It is an amenable number.

53835551685 is a deficient number, since it is larger than the sum of its proper divisors (39743780499).

53835551685 is a wasteful number, since it uses less digits than its factorization.

53835551685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389445 (or 3389442 counting only the distinct ones).

The product of its digits is 10800000, while the sum is 54.

The spelling of 53835551685 in words is "fifty-three billion, eight hundred thirty-five million, five hundred fifty-one thousand, six hundred eighty-five".