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20825534867 is a prime number
BaseRepresentation
bin10011011001010011…
…000111000110010011
31222202100220210012012
4103121103013012103
5320122314103432
613322255253135
71335035061044
oct233123070623
958670823165
1020825534867
118917520645
12405251a1ab
131c6b72b2c7
141017bba8cb
1581d488cb2
hex4d94c7193

20825534867 has 2 divisors, whose sum is σ = 20825534868. Its totient is φ = 20825534866.

The previous prime is 20825534861. The next prime is 20825534881. The reversal of 20825534867 is 76843552802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20825534867 - 228 = 20557099411 is a prime.

It is not a weakly prime, because it can be changed into another prime (20825534861) 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, 10412767433 + 10412767434.

It is an arithmetic number, because the mean of its divisors is an integer number (10412767434).

Almost surely, 220825534867 is an apocalyptic number.

20825534867 is a deficient number, since it is larger than the sum of its proper divisors (1).

20825534867 is an equidigital number, since it uses as much as digits as its factorization.

20825534867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 20825534867 in words is "twenty billion, eight hundred twenty-five million, five hundred thirty-four thousand, eight hundred sixty-seven".