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54671540087 is a prime number
BaseRepresentation
bin110010111010101011…
…010111111101110111
312020010011010222220002
4302322223113331313
51343431403240322
641041000501515
73643545265103
oct627253277567
9166104128802
1054671540087
112120572828a
12a71947a89b
135203847828
142908d30903
15164ea69c92
hexcbaad7f77

54671540087 has 2 divisors, whose sum is σ = 54671540088. Its totient is φ = 54671540086.

The previous prime is 54671540081. The next prime is 54671540171. The reversal of 54671540087 is 78004517645.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54671540087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54671540081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27335770043 + 27335770044.

It is an arithmetic number, because the mean of its divisors is an integer number (27335770044).

Almost surely, 254671540087 is an apocalyptic number.

54671540087 is a deficient number, since it is larger than the sum of its proper divisors (1).

54671540087 is an equidigital number, since it uses as much as digits as its factorization.

54671540087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 54671540087 in words is "fifty-four billion, six hundred seventy-one million, five hundred forty thousand, eighty-seven".