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66054425 = 5210392543
BaseRepresentation
bin1111101111111…
…0100100011001
311121021220122012
43323332210121
5113402220200
610315435305
71431311333
oct373764431
9147256565
1066054425
1134316738
121a155b35
13108b9978
148ab6453
155beba35
hex3efe919

66054425 has 12 divisors (see below), whose sum is σ = 82018560. Its totient is φ = 52771920.

The previous prime is 66054379. The next prime is 66054437. The reversal of 66054425 is 52445066.

It is not a de Polignac number, because 66054425 - 212 = 66050329 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66054391 and 66054400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24704 + ... + 27246.

It is an arithmetic number, because the mean of its divisors is an integer number (6834880).

Almost surely, 266054425 is an apocalyptic number.

It is an amenable number.

66054425 is a deficient number, since it is larger than the sum of its proper divisors (15964135).

66054425 is a wasteful number, since it uses less digits than its factorization.

66054425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592 (or 3587 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 66054425 is about 8127.3873415754. The cubic root of 66054425 is about 404.2350546172.

The spelling of 66054425 in words is "sixty-six million, fifty-four thousand, four hundred twenty-five".

Divisors: 1 5 25 1039 2543 5195 12715 25975 63575 2642177 13210885 66054425