Search a number
-
+
54481079 is a prime number
BaseRepresentation
bin1100111111010…
…1000010110111
310210111220222202
43033311002313
5102421343304
65223415115
71231036652
oct317650267
9123456882
1054481079
1128831494
12162b449b
13b396c33
147342899
154bb281e
hex33f50b7

54481079 has 2 divisors, whose sum is σ = 54481080. Its totient is φ = 54481078.

The previous prime is 54481067. The next prime is 54481081. The reversal of 54481079 is 97018445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54481079 is a prime.

It is a Sophie Germain prime.

Together with 54481081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54481099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27240539 + 27240540.

It is an arithmetic number, because the mean of its divisors is an integer number (27240540).

Almost surely, 254481079 is an apocalyptic number.

54481079 is a deficient number, since it is larger than the sum of its proper divisors (1).

54481079 is an equidigital number, since it uses as much as digits as its factorization.

54481079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 54481079 is about 7381.1299270505. The cubic root of 54481079 is about 379.0954454537.

The spelling of 54481079 in words is "fifty-four million, four hundred eighty-one thousand, seventy-nine".