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55610893 = 1317298677
BaseRepresentation
bin1101010000100…
…0111000001101
310212122022210201
43110020320031
5103214022033
65303533501
71243453612
oct324107015
9125568721
1055610893
1129433318
121675a291
13b6a1270
147558509
154d3747d
hex3508e0d

55610893 has 16 divisors (see below), whose sum is σ = 65605680. Its totient is φ = 46642176.

The previous prime is 55610881. The next prime is 55610897. The reversal of 55610893 is 39801655.

It can be written as a sum of positive squares in 8 ways, for example, as 1397124 + 54213769 = 1182^2 + 7363^2 .

It is a cyclic number.

It is not a de Polignac number, because 55610893 - 25 = 55610861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55610897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2071 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (4100355).

Almost surely, 255610893 is an apocalyptic number.

It is an amenable number.

55610893 is a deficient number, since it is larger than the sum of its proper divisors (9994787).

55610893 is a wasteful number, since it uses less digits than its factorization.

55610893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55610893 is about 7457.2711496901. The cubic root of 55610893 is about 381.6980632647.

It can be divided in two parts, 556 and 10893, that added together give a square (11449 = 1072).

The spelling of 55610893 in words is "fifty-five million, six hundred ten thousand, eight hundred ninety-three".

Divisors: 1 13 17 29 221 377 493 6409 8677 112801 147509 251633 1917617 3271229 4277761 55610893