221600053 has 2 divisors, whose sum is σ = 221600054. Its totient is φ = 221600052.

The previous prime is 221600051. The next prime is 221600063. The reversal of 221600053 is 350006122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201015684 + 20584369 = 14178^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 221600053 - 2¹ = 221600051 is a prime.

Together with 221600051, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221600053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221600051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110800026 + 110800027.

It is an arithmetic number, because the mean of its divisors is an integer number (110800027).

Almost surely, 2^221600053 is an apocalyptic number.

It is an amenable number.

221600053 is a deficient number, since it is larger than the sum of its proper divisors (1).

221600053 is an equidigital number, since it uses as much as digits as its factorization.

221600053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 221600053 is about 14886.2370329106. The cubic root of 221600053 is about 605.1410576542.

Adding to 221600053 its reverse (350006122), we get a palindrome (571606175).

The spelling of 221600053 in words is "two hundred twenty-one million, six hundred thousand, fifty-three".