553330231 has 2 divisors, whose sum is σ = 553330232. Its totient is φ = 553330230.

The previous prime is 553330223. The next prime is 553330241. The reversal of 553330231 is 132033355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553330231 - 2³ = 553330223 is a prime.

It is a super-2 number, since 2×553330231² = 612348689077026722, which contains 22 as substring.

It is equal to p_29011246 and since 553330231 and 29011246 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 553330196 and 553330205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553330241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276665115 + 276665116.

It is an arithmetic number, because the mean of its divisors is an integer number (276665116).

Almost surely, 2^553330231 is an apocalyptic number.

553330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

553330231 is an equidigital number, since it uses as much as digits as its factorization.

553330231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 553330231 is about 23522.9724099655. The cubic root of 553330231 is about 820.9715981734.

Adding to 553330231 its reverse (132033355), we get a palindrome (685363586).

The spelling of 553330231 in words is "five hundred fifty-three million, three hundred thirty thousand, two hundred thirty-one".