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55695845 = 553210173
BaseRepresentation
bin1101010001110…
…1100111100101
310212210122100002
43110131213211
5103224231340
65305431045
71244256362
oct324354745
9125718302
1055695845
1129491127
121679b485
13b700b2a
14757b469
154d52715
hex351d9e5

55695845 has 8 divisors (see below), whose sum is σ = 68096376. Its totient is φ = 43715776.

The previous prime is 55695803. The next prime is 55695847. The reversal of 55695845 is 54859655.

It can be written as a sum of positive squares in 4 ways, for example, as 16144324 + 39551521 = 4018^2 + 6289^2 .

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 55695845 - 26 = 55695781 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 55695845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55695847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104822 + ... + 105351.

It is an arithmetic number, because the mean of its divisors is an integer number (8512047).

Almost surely, 255695845 is an apocalyptic number.

It is an amenable number.

55695845 is a deficient number, since it is larger than the sum of its proper divisors (12400531).

55695845 is a wasteful number, since it uses less digits than its factorization.

55695845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210231.

The product of its digits is 1080000, while the sum is 47.

The square root of 55695845 is about 7462.9648933919. The cubic root of 55695845 is about 381.8923268621.

The spelling of 55695845 in words is "fifty-five million, six hundred ninety-five thousand, eight hundred forty-five".

Divisors: 1 5 53 265 210173 1050865 11139169 55695845