553121353 has 2 divisors, whose sum is σ = 553121354. Its totient is φ = 553121352.

The previous prime is 553121351. The next prime is 553121377. The reversal of 553121353 is 353121355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443018304 + 110103049 = 21048^2 + 10493^2 .

It is a cyclic number.

It is not a de Polignac number, because 553121353 - 2¹ = 553121351 is a prime.

It is a super-2 number, since 2×553121353² = 611886462289101218, which contains 22 as substring.

Together with 553121351, it forms a pair of twin primes.

It is equal to p_29000818 and since 553121353 and 29000818 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (553121351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276560676 + 276560677.

It is an arithmetic number, because the mean of its divisors is an integer number (276560677).

Almost surely, 2^553121353 is an apocalyptic number.

It is an amenable number.

553121353 is a deficient number, since it is larger than the sum of its proper divisors (1).

553121353 is an equidigital number, since it uses as much as digits as its factorization.

553121353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6750, while the sum is 28.

The square root of 553121353 is about 23518.5321183104. The cubic root of 553121353 is about 820.8682816376.

It can be divided in two parts, 55312 and 1353, that added together give a palindrome (56665).

The spelling of 553121353 in words is "five hundred fifty-three million, one hundred twenty-one thousand, three hundred fifty-three".