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BaseRepresentation
bin10011000110111000…
…010101010011011001
31221221211110110201102
4103012320111103121
5314004212302043
613231500201145
71324263405326
oct230670252331
957854413642
1020516525273
118779053112
123b86b391b5
131c1c6c76aa
14dc8b3db4d
1580129a6b8
hex4c6e154d9

20516525273 has 2 divisors, whose sum is σ = 20516525274. Its totient is φ = 20516525272.

The previous prime is 20516525231. The next prime is 20516525329. The reversal of 20516525273 is 37252561502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19960886089 + 555639184 = 141283^2 + 23572^2 .

It is a cyclic number.

It is not a de Polignac number, because 20516525273 - 218 = 20516263129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20516525473) 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, 10258262636 + 10258262637.

It is an arithmetic number, because the mean of its divisors is an integer number (10258262637).

Almost surely, 220516525273 is an apocalyptic number.

It is an amenable number.

20516525273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20516525273 is an equidigital number, since it uses as much as digits as its factorization.

20516525273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 20516525273 in words is "twenty billion, five hundred sixteen million, five hundred twenty-five thousand, two hundred seventy-three".