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52550545 = 537284057
BaseRepresentation
bin1100100001110…
…1101110010001
310122212211210111
43020131232101
5101423104140
65114201321
71205446405
oct310355621
9118784714
1052550545
1127733003
1215723241
13ab6c2c8
146d9d105
1549307ea
hex321db91

52550545 has 8 divisors (see below), whose sum is σ = 64765224. Its totient is φ = 40904064.

The previous prime is 52550543. The next prime is 52550551. The reversal of 52550545 is 54505525.

52550545 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 4 ways, for example, as 7230721 + 45319824 = 2689^2 + 6732^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52550545 - 21 = 52550543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52550543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141844 + ... + 142213.

It is an arithmetic number, because the mean of its divisors is an integer number (8095653).

Almost surely, 252550545 is an apocalyptic number.

It is an amenable number.

52550545 is a deficient number, since it is larger than the sum of its proper divisors (12214679).

52550545 is a wasteful number, since it uses less digits than its factorization.

52550545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284099.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 52550545 is about 7249.1754703552. The cubic root of 52550545 is about 374.5637475016.

The spelling of 52550545 in words is "fifty-two million, five hundred fifty thousand, five hundred forty-five".

Divisors: 1 5 37 185 284057 1420285 10510109 52550545