53868189 has 16 divisors (see below), whose sum is σ = 78107328. Its totient is φ = 32884992.

The previous prime is 53868181. The next prime is 53868203. The reversal of 53868189 is 98186835.

It is not a de Polignac number, because 53868189 - 2³ = 53868181 is a prime.

It is a super-2 number, since 2×53868189² = 5803563572279442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53868181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12387 + ... + 16160.

It is an arithmetic number, because the mean of its divisors is an integer number (4881708).

Almost surely, 2^53868189 is an apocalyptic number.

It is an amenable number.

53868189 is a deficient number, since it is larger than the sum of its proper divisors (24239139).

53868189 is a wasteful number, since it uses less digits than its factorization.

53868189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604.

The product of its digits is 414720, while the sum is 48.

The square root of 53868189 is about 7339.4951461255. The cubic root of 53868189 is about 377.6685246707.

The spelling of 53868189 in words is "fifty-three million, eight hundred sixty-eight thousand, one hundred eighty-nine".