53416221 has 8 divisors (see below), whose sum is σ = 71290944. Its totient is φ = 35576160.

The previous prime is 53416169. The next prime is 53416229. The reversal of 53416221 is 12261435.

53416221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53416221 - 2⁶ = 53416157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53416191 and 53416200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53416229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (8911368).

Almost surely, 2^53416221 is an apocalyptic number.

It is an amenable number.

53416221 is a deficient number, since it is larger than the sum of its proper divisors (17874723).

53416221 is a wasteful number, since it uses less digits than its factorization.

53416221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17331.

The product of its digits is 1440, while the sum is 24.

The square root of 53416221 is about 7308.6401607960. The cubic root of 53416221 is about 376.6093113215.

Adding to 53416221 its reverse (12261435), we get a palindrome (65677656).

The spelling of 53416221 in words is "fifty-three million, four hundred sixteen thousand, two hundred twenty-one".