553140323 has 2 divisors, whose sum is σ = 553140324. Its totient is φ = 553140322.

The previous prime is 553140241. The next prime is 553140421. The reversal of 553140323 is 323041355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553140323 - 2¹⁴ = 553123939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 553140292 and 553140301.

It is not a weakly prime, because it can be changed into another prime (553140923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276570161 + 276570162.

It is an arithmetic number, because the mean of its divisors is an integer number (276570162).

Almost surely, 2^553140323 is an apocalyptic number.

553140323 is a deficient number, since it is larger than the sum of its proper divisors (1).

553140323 is an equidigital number, since it uses as much as digits as its factorization.

553140323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 553140323 is about 23518.9354138320. The cubic root of 553140323 is about 820.8776657708.

Adding to 553140323 its reverse (323041355), we get a palindrome (876181678).

It can be divided in two parts, 5531 and 40323, that added together give a palindrome (45854).

The spelling of 553140323 in words is "five hundred fifty-three million, one hundred forty thousand, three hundred twenty-three".