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5555302981 is a prime number
BaseRepresentation
bin1010010110001111…
…10011001001000101
3112100011021122001021
411023013303021011
542334124143411
62315125231141
7254444203414
oct51307631105
915304248037
105555302981
1123a0907398
1210b05624b1
136a6c07a37
143a9b3147b
15227a95a71
hex14b1f3245

5555302981 has 2 divisors, whose sum is σ = 5555302982. Its totient is φ = 5555302980.

The previous prime is 5555302979. The next prime is 5555303029. The reversal of 5555302981 is 1892035555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4933798081 + 621504900 = 70241^2 + 24930^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555302981 - 21 = 5555302979 is a prime.

It is a super-3 number, since 3×55553029813 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 5555302979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5555303981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777651490 + 2777651491.

It is an arithmetic number, because the mean of its divisors is an integer number (2777651491).

Almost surely, 25555302981 is an apocalyptic number.

It is an amenable number.

5555302981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555302981 is an equidigital number, since it uses as much as digits as its factorization.

5555302981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 5555302981 is about 74533.9049091083. The cubic root of 5555302981 is about 1771.0707748460.

The spelling of 5555302981 in words is "five billion, five hundred fifty-five million, three hundred two thousand, nine hundred eighty-one".