53857413185 has 8 divisors (see below), whose sum is σ = 64631699496. Its totient is φ = 43084061440.

The previous prime is 53857413161. The next prime is 53857413283. The reversal of 53857413185 is 58131475835.

It is a Cunningham number, because it is equal to 232072²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 107163904 + 53750249281 = 10352^2 + 231841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53857413185 - 2²⁴ = 53840635969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99896 + ... + 343065.

It is an arithmetic number, because the mean of its divisors is an integer number (8078962437).

Almost surely, 2^53857413185 is an apocalyptic number.

It is an amenable number.

53857413185 is a deficient number, since it is larger than the sum of its proper divisors (10774286311).

53857413185 is a wasteful number, since it uses less digits than its factorization.

53857413185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467283.

The product of its digits is 2016000, while the sum is 50.

The spelling of 53857413185 in words is "fifty-three billion, eight hundred fifty-seven million, four hundred thirteen thousand, one hundred eighty-five".