53193985 has 16 divisors (see below), whose sum is σ = 70963200. Its totient is φ = 38013120.

The previous prime is 53193979. The next prime is 53194007. The reversal of 53193985 is 58939135.

It is not a de Polignac number, because 53193985 - 2¹¹ = 53191937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11185 + ... + 15214.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^53193985 is an apocalyptic number.

It is an amenable number.

53193985 is a deficient number, since it is larger than the sum of its proper divisors (17769215).

53193985 is a wasteful number, since it uses less digits than its factorization.

53193985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26448.

The product of its digits is 145800, while the sum is 43.

The square root of 53193985 is about 7293.4206652297. The cubic root of 53193985 is about 376.0862961161.

The spelling of 53193985 in words is "fifty-three million, one hundred ninety-three thousand, nine hundred eighty-five".