552153221 has 2 divisors, whose sum is σ = 552153222. Its totient is φ = 552153220.

The previous prime is 552153193. The next prime is 552153223. The reversal of 552153221 is 122351255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535228225 + 16924996 = 23135^2 + 4114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552153221 is a prime.

Together with 552153223, 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 (552153223) 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, 276076610 + 276076611.

It is an arithmetic number, because the mean of its divisors is an integer number (276076611).

Almost surely, 2^552153221 is an apocalyptic number.

It is an amenable number.

552153221 is a deficient number, since it is larger than the sum of its proper divisors (1).

552153221 is an equidigital number, since it uses as much as digits as its factorization.

552153221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 26.

The square root of 552153221 is about 23497.9407821196. The cubic root of 552153221 is about 820.3890781984.

The spelling of 552153221 in words is "five hundred fifty-two million, one hundred fifty-three thousand, two hundred twenty-one".