53859221 has 8 divisors (see below), whose sum is σ = 58427544. Its totient is φ = 49351680.

The previous prime is 53859217. The next prime is 53859259. The reversal of 53859221 is 12295835.

It can be written as a sum of positive squares in 4 ways, for example, as 130321 + 53728900 = 361^2 + 7330^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53859221 - 2² = 53859217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53859821) 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, 13340 + ... + 16901.

It is an arithmetic number, because the mean of its divisors is an integer number (7303443).

Almost surely, 2^53859221 is an apocalyptic number.

It is an amenable number.

53859221 is a deficient number, since it is larger than the sum of its proper divisors (4568323).

53859221 is a wasteful number, since it uses less digits than its factorization.

53859221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30391.

The product of its digits is 21600, while the sum is 35.

The square root of 53859221 is about 7338.8841794921. The cubic root of 53859221 is about 377.6475653664.

The spelling of 53859221 in words is "fifty-three million, eight hundred fifty-nine thousand, two hundred twenty-one".