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54345520025 = 5279124922031
BaseRepresentation
bin110010100111001111…
…101101001110011001
312012021102200110102222
4302213033231032121
51342244423120100
640544353033425
73632506204226
oct624717551631
9165242613388
1054345520025
11210586a1615
12a648255875
135181139454
1428b790694d
15163111b485
hexca73ed399

54345520025 has 24 divisors (see below), whose sum is σ = 68299200000. Its totient is φ = 42889766400.

The previous prime is 54345519997. The next prime is 54345520027. The reversal of 54345520025 is 52002554345.

It is not a de Polignac number, because 54345520025 - 228 = 54077084569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54345520027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2455760 + ... + 2477790.

It is an arithmetic number, because the mean of its divisors is an integer number (2845800000).

Almost surely, 254345520025 is an apocalyptic number.

It is an amenable number.

54345520025 is a deficient number, since it is larger than the sum of its proper divisors (13953679975).

54345520025 is a wasteful number, since it uses less digits than its factorization.

54345520025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23369 (or 23364 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

The spelling of 54345520025 in words is "fifty-four billion, three hundred forty-five million, five hundred twenty thousand, twenty-five".

Divisors: 1 5 25 79 395 1249 1975 6245 22031 31225 98671 110155 493355 550775 1740449 2466775 8702245 27516719 43511225 137583595 687917975 2173820801 10869104005 54345520025