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55084531 is a prime number
BaseRepresentation
bin1101001000100…
…0010111110011
310211122120202211
43102020113303
5103100201111
65244352551
71236132205
oct322102763
9124576684
1055084531
1129103907
1216545757
13b5487c8
14745c775
154c81521
hex34885f3

55084531 has 2 divisors, whose sum is σ = 55084532. Its totient is φ = 55084530.

The previous prime is 55084511. The next prime is 55084571. The reversal of 55084531 is 13548055.

55084531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55084531 - 211 = 55082483 is a prime.

It is a super-2 number, since 2×550845312 = 6068611110979922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55084493 and 55084502.

It is not a weakly prime, because it can be changed into another prime (55084511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27542265 + 27542266.

It is an arithmetic number, because the mean of its divisors is an integer number (27542266).

Almost surely, 255084531 is an apocalyptic number.

55084531 is a deficient number, since it is larger than the sum of its proper divisors (1).

55084531 is an equidigital number, since it uses as much as digits as its factorization.

55084531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 55084531 is about 7421.8953778668. The cubic root of 55084531 is about 380.4899750606.

The spelling of 55084531 in words is "fifty-five million, eighty-four thousand, five hundred thirty-one".