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54387214391 is a prime number
BaseRepresentation
bin110010101001101110…
…110000100000110111
312012101100010202100202
4302221232300200313
51342341111330031
640552442431115
73633523460156
oct625156604067
9165340122322
1054387214391
112107a18a174
12a65a20249b
135189977283
1428bd27b59d
151634b052cb
hexca9bb0837

54387214391 has 2 divisors, whose sum is σ = 54387214392. Its totient is φ = 54387214390.

The previous prime is 54387214337. The next prime is 54387214429. The reversal of 54387214391 is 19341278345.

54387214391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54387214391 - 26 = 54387214327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54387219391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27193607195 + 27193607196.

It is an arithmetic number, because the mean of its divisors is an integer number (27193607196).

Almost surely, 254387214391 is an apocalyptic number.

54387214391 is a deficient number, since it is larger than the sum of its proper divisors (1).

54387214391 is an equidigital number, since it uses as much as digits as its factorization.

54387214391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The spelling of 54387214391 in words is "fifty-four billion, three hundred eighty-seven million, two hundred fourteen thousand, three hundred ninety-one".