53571385 has 8 divisors (see below), whose sum is σ = 73469376. Its totient is φ = 36734640.

The previous prime is 53571377. The next prime is 53571389. The reversal of 53571385 is 58317535.

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

It is not a de Polignac number, because 53571385 - 2³ = 53571377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53571389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765271 + ... + 765340.

It is an arithmetic number, because the mean of its divisors is an integer number (9183672).

Almost surely, 2^53571385 is an apocalyptic number.

It is an amenable number.

53571385 is a deficient number, since it is larger than the sum of its proper divisors (19897991).

53571385 is a wasteful number, since it uses less digits than its factorization.

53571385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530623.

The product of its digits is 63000, while the sum is 37.

The square root of 53571385 is about 7319.2475706182. The cubic root of 53571385 is about 376.9736183628.

It can be divided in two parts, 53571 and 385, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53571385 in words is "fifty-three million, five hundred seventy-one thousand, three hundred eighty-five".