553121351 has 2 divisors, whose sum is σ = 553121352. Its totient is φ = 553121350.

The previous prime is 553121291. The next prime is 553121353. The reversal of 553121351 is 153121355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553121351 - 2¹⁰ = 553120327 is a prime.

It is a Sophie Germain prime.

Together with 553121353, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 553121351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553121353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276560675 + 276560676.

It is an arithmetic number, because the mean of its divisors is an integer number (276560676).

Almost surely, 2^553121351 is an apocalyptic number.

553121351 is a deficient number, since it is larger than the sum of its proper divisors (1).

553121351 is an equidigital number, since it uses as much as digits as its factorization.

553121351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250, while the sum is 26.

The square root of 553121351 is about 23518.5320757908. The cubic root of 553121351 is about 820.8682806482.

The spelling of 553121351 in words is "five hundred fifty-three million, one hundred twenty-one thousand, three hundred fifty-one".