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54245323381 is a prime number
BaseRepresentation
bin110010100001010001…
…011111001001110101
312012000110010221111011
4302201101133021311
51342043300322011
640530413312221
73630151432564
oct624121371165
9165013127434
1054245323381
1121007086377
12a61a795671
1351664572b2
1428a84a3bdb
151627428621
hexca145f275

54245323381 has 2 divisors, whose sum is σ = 54245323382. Its totient is φ = 54245323380.

The previous prime is 54245323367. The next prime is 54245323411. The reversal of 54245323381 is 18332354245.

54245323381 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 can be written as a sum of positive squares in only one way, i.e., 54200030481 + 45292900 = 232809^2 + 6730^2 .

It is a cyclic number.

It is not a de Polignac number, because 54245323381 - 221 = 54243226229 is a prime.

It is a super-2 number, since 2×542453233812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54245123381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27122661690 + 27122661691.

It is an arithmetic number, because the mean of its divisors is an integer number (27122661691).

Almost surely, 254245323381 is an apocalyptic number.

It is an amenable number.

54245323381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54245323381 is an equidigital number, since it uses as much as digits as its factorization.

54245323381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

The spelling of 54245323381 in words is "fifty-four billion, two hundred forty-five million, three hundred twenty-three thousand, three hundred eighty-one".