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54645207457 is a prime number
BaseRepresentation
bin110010111001000110…
…111011000110100001
312020001022121011022111
4302321012323012201
51343403133114312
641034220235321
73643105412431
oct627106730641
9166038534274
1054645207457
11211a1882185
12a71069bb41
1351cb257ba9
1429056382c1
15164c5b78a7
hexcb91bb1a1

54645207457 has 2 divisors, whose sum is σ = 54645207458. Its totient is φ = 54645207456.

The previous prime is 54645207401. The next prime is 54645207553. The reversal of 54645207457 is 75470254645.

54645207457 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., 37834529121 + 16810678336 = 194511^2 + 129656^2 .

It is a cyclic number.

It is not a de Polignac number, because 54645207457 - 211 = 54645205409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54645207457.

It is not a weakly prime, because it can be changed into another prime (54645207257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27322603728 + 27322603729.

It is an arithmetic number, because the mean of its divisors is an integer number (27322603729).

Almost surely, 254645207457 is an apocalyptic number.

It is an amenable number.

54645207457 is a deficient number, since it is larger than the sum of its proper divisors (1).

54645207457 is an equidigital number, since it uses as much as digits as its factorization.

54645207457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704000, while the sum is 49.

The spelling of 54645207457 in words is "fifty-four billion, six hundred forty-five million, two hundred seven thousand, four hundred fifty-seven".