53855570168405 has 4 divisors (see below), whose sum is σ = 64626684202092. Its totient is φ = 43084456134720.

The previous prime is 53855570168377. The next prime is 53855570168417. The reversal of 53855570168405 is 50486107555835.

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 24645674442481 + 29209895725924 = 4964441^2 + 5404618^2 .

It is not a de Polignac number, because 53855570168405 - 2¹⁸ = 53855569906261 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 3 ways as a sum of consecutive naturals, for example, 5385557016836 + ... + 5385557016845.

It is an arithmetic number, because the mean of its divisors is an integer number (16156671050523).

Almost surely, 2^{53855570168405} is an apocalyptic number.

It is an amenable number.

53855570168405 is a deficient number, since it is larger than the sum of its proper divisors (10771114033687).

53855570168405 is a wasteful number, since it uses less digits than its factorization.

53855570168405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771114033686.

The product of its (nonzero) digits is 100800000, while the sum is 62.

The spelling of 53855570168405 in words is "fifty-three trillion, eight hundred fifty-five billion, five hundred seventy million, one hundred sixty-eight thousand, four hundred five".