53601221 has 8 divisors (see below), whose sum is σ = 56819520. Its totient is φ = 50390208.

The previous prime is 53601217. The next prime is 53601253. The reversal of 53601221 is 12210635.

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 53601221 - 2² = 53601217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53601193 and 53601202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53601281) 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, 23510 + ... + 25688.

It is an arithmetic number, because the mean of its divisors is an integer number (7102440).

Almost surely, 2^53601221 is an apocalyptic number.

It is an amenable number.

53601221 is a deficient number, since it is larger than the sum of its proper divisors (3218299).

53601221 is a wasteful number, since it uses less digits than its factorization.

53601221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 53601221 is about 7321.2854745598. The cubic root of 53601221 is about 377.0435891596.

Adding to 53601221 its reverse (12210635), we get a palindrome (65811856).

The spelling of 53601221 in words is "fifty-three million, six hundred one thousand, two hundred twenty-one".