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552921881 is a prime number
BaseRepresentation
bin100000111101001…
…110101100011001
31102112102100020012
4200331032230121
52113022000011
6130511011305
716462521101
oct4075165431
91375370205
10552921881
11264123436
12135209b35
138a724415
1453610201
153381da8b
hex20f4eb19

552921881 has 2 divisors, whose sum is σ = 552921882. Its totient is φ = 552921880.

The previous prime is 552921841. The next prime is 552921899. The reversal of 552921881 is 188129255.

552921881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529000000 + 23921881 = 23000^2 + 4891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-552921881 is a prime.

It is a super-2 number, since 2×5529218812 = 611445212977156322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (552921841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276460940 + 276460941.

It is an arithmetic number, because the mean of its divisors is an integer number (276460941).

Almost surely, 2552921881 is an apocalyptic number.

It is an amenable number.

552921881 is a deficient number, since it is larger than the sum of its proper divisors (1).

552921881 is an equidigital number, since it uses as much as digits as its factorization.

552921881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 41.

The square root of 552921881 is about 23514.2909950523. The cubic root of 552921881 is about 820.7695932732.

The spelling of 552921881 in words is "five hundred fifty-two million, nine hundred twenty-one thousand, eight hundred eighty-one".