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54581306825 = 522183252273
BaseRepresentation
bin110010110101010011…
…001010010111001001
312012212212100200010102
4302311103022113021
51343240303304300
641024014455145
73641401311263
oct626523122711
9165785320112
1054581306825
11211697a7741
12a6b32044b5
1351bac43676
1428dad62b33
151646b940d5
hexcb54ca5c9

54581306825 has 6 divisors (see below), whose sum is σ = 67680820494. Its totient is φ = 43665045440.

The previous prime is 54581306771. The next prime is 54581306837. The reversal of 54581306825 is 52860318545.

54581306825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 14154574729 + 40426732096 = 118973^2 + 201064^2 .

It is not a de Polignac number, because 54581306825 - 224 = 54564529609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54581306825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1091626112 + ... + 1091626161.

It is an arithmetic number, because the mean of its divisors is an integer number (11280136749).

Almost surely, 254581306825 is an apocalyptic number.

It is an amenable number.

54581306825 is a deficient number, since it is larger than the sum of its proper divisors (13099513669).

54581306825 is a wasteful number, since it uses less digits than its factorization.

54581306825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183252283 (or 2183252278 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 54581306825 in words is "fifty-four billion, five hundred eighty-one million, three hundred six thousand, eight hundred twenty-five".

Divisors: 1 5 25 2183252273 10916261365 54581306825