553938361 has 2 divisors, whose sum is σ = 553938362. Its totient is φ = 553938360.

The previous prime is 553938311. The next prime is 553938397. The reversal of 553938361 is 163839355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553707961 + 230400 = 23531^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 553938361 - 2⁹ = 553937849 is a prime.

It is not a weakly prime, because it can be changed into another prime (553938311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276969180 + 276969181.

It is an arithmetic number, because the mean of its divisors is an integer number (276969181).

Almost surely, 2^553938361 is an apocalyptic number.

It is an amenable number.

553938361 is a deficient number, since it is larger than the sum of its proper divisors (1).

553938361 is an equidigital number, since it uses as much as digits as its factorization.

553938361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 553938361 is about 23535.8951603715. The cubic root of 553938361 is about 821.2722472499.

The spelling of 553938361 in words is "five hundred fifty-three million, nine hundred thirty-eight thousand, three hundred sixty-one".