553421311 has 2 divisors, whose sum is σ = 553421312. Its totient is φ = 553421310.

The previous prime is 553421293. The next prime is 553421317. The reversal of 553421311 is 113124355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553421311 - 2⁵ = 553421279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553421317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276710655 + 276710656.

It is an arithmetic number, because the mean of its divisors is an integer number (276710656).

Almost surely, 2^553421311 is an apocalyptic number.

553421311 is a deficient number, since it is larger than the sum of its proper divisors (1).

553421311 is an equidigital number, since it uses as much as digits as its factorization.

553421311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 553421311 is about 23524.9083101295. The cubic root of 553421311 is about 821.0166405891.

Adding to 553421311 its reverse (113124355), we get a palindrome (666545666).

The spelling of 553421311 in words is "five hundred fifty-three million, four hundred twenty-one thousand, three hundred eleven".