53444353 has 2 divisors, whose sum is σ = 53444354. Its totient is φ = 53444352.

The previous prime is 53444351. The next prime is 53444389. The reversal of 53444353 is 35344435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 9659664 = 6617^2 + 3108^2 .

It is a cyclic number.

It is not a de Polignac number, because 53444353 - 2¹ = 53444351 is a prime.

Together with 53444351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53444351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26722176 + 26722177.

It is an arithmetic number, because the mean of its divisors is an integer number (26722177).

Almost surely, 2^53444353 is an apocalyptic number.

It is an amenable number.

53444353 is a deficient number, since it is larger than the sum of its proper divisors (1).

53444353 is an equidigital number, since it uses as much as digits as its factorization.

53444353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 31.

The square root of 53444353 is about 7310.5644788894. The cubic root of 53444353 is about 376.6754142990.

Adding to 53444353 its reverse (35344435), we get a palindrome (88788788).

The spelling of 53444353 in words is "fifty-three million, four hundred forty-four thousand, three hundred fifty-three".