53185893 has 16 divisors (see below), whose sum is σ = 72000576. Its totient is φ = 34918400.

The previous prime is 53185889. The next prime is 53185903. The reversal of 53185893 is 39858135.

It is a cyclic number.

It is not a de Polignac number, because 53185893 - 2² = 53185889 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53185813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77530 + ... + 78212.

It is an arithmetic number, because the mean of its divisors is an integer number (4500036).

Almost surely, 2^53185893 is an apocalyptic number.

It is an amenable number.

53185893 is a deficient number, since it is larger than the sum of its proper divisors (18814683).

53185893 is a wasteful number, since it uses less digits than its factorization.

53185893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its digits is 129600, while the sum is 42.

The square root of 53185893 is about 7292.8658975741. The cubic root of 53185893 is about 376.0672247578.

It can be divided in two parts, 5318 and 5893, that added together give a palindrome (11211).

The spelling of 53185893 in words is "fifty-three million, one hundred eighty-five thousand, eight hundred ninety-three".