553521047 has 2 divisors, whose sum is σ = 553521048. Its totient is φ = 553521046.

The previous prime is 553521019. The next prime is 553521049. The reversal of 553521047 is 740125355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553521047 - 2²⁶ = 486412183 is a prime.

Together with 553521049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553521049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276760523 + 276760524.

It is an arithmetic number, because the mean of its divisors is an integer number (276760524).

Almost surely, 2^553521047 is an apocalyptic number.

553521047 is a deficient number, since it is larger than the sum of its proper divisors (1).

553521047 is an equidigital number, since it uses as much as digits as its factorization.

553521047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 553521047 is about 23527.0280103544. The cubic root of 553521047 is about 821.0659580473.

The spelling of 553521047 in words is "five hundred fifty-three million, five hundred twenty-one thousand, forty-seven".