53455111605 has 144 divisors (see below), whose sum is σ = 110550785904. Its totient is φ = 23816540160.

The previous prime is 53455111579. The next prime is 53455111607. The reversal of 53455111605 is 50611155435.

53455111605 is a `hidden beast` number, since 5 + 3 + 45 + 5 + 1 + 1 + 1 + 605 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8406322596 + 45048789009 = 91686^2 + 212247^2 .

It is not a de Polignac number, because 53455111605 - 2⁵ = 53455111573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53455111605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53455111607) 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 143 ways as a sum of consecutive naturals, for example, 15197307 + ... + 15200823.

It is an arithmetic number, because the mean of its divisors is an integer number (767713791).

Almost surely, 2^53455111605 is an apocalyptic number.

It is an amenable number.

53455111605 is an abundant number, since it is smaller than the sum of its proper divisors (57095674299).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53455111605 is a wasteful number, since it uses less digits than its factorization.

53455111605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716 (or 3706 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 53455111605 in words is "fifty-three billion, four hundred fifty-five million, one hundred eleven thousand, six hundred five".