553012442353421 has 2 divisors, whose sum is σ = 553012442353422. Its totient is φ = 553012442353420.

The previous prime is 553012442353409. The next prime is 553012442353463. The reversal of 553012442353421 is 124353244210355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367477014696100 + 185535427657321 = 19169690^2 + 13621139^2 .

It is a cyclic number.

It is not a de Polignac number, because 553012442353421 - 2¹⁰ = 553012442352397 is a prime.

It is a super-2 number, since 2×553012442353421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553012442653421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276506221176710 + 276506221176711.

It is an arithmetic number, because the mean of its divisors is an integer number (276506221176711).

Almost surely, 2^{553012442353421} is an apocalyptic number.

It is an amenable number.

553012442353421 is a deficient number, since it is larger than the sum of its proper divisors (1).

553012442353421 is an equidigital number, since it uses as much as digits as its factorization.

553012442353421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 553012442353421 its reverse (124353244210355), we get a palindrome (677365686563776).

The spelling of 553012442353421 in words is "five hundred fifty-three trillion, twelve billion, four hundred forty-two million, three hundred fifty-three thousand, four hundred twenty-one".