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55823610887 = 1143891326071
BaseRepresentation
bin110011111111010110…
…001011010000000111
312100002102222020220222
4303333112023100013
51403311321022022
641351153414555
74014234602102
oct637726132007
9170072866828
1055823610887
1121746a78110
12a99b26a45b
13535842a325
1429b7d45739
1516bac89242
hexcff58b407

55823610887 has 16 divisors (see below), whose sum is σ = 63014941440. Its totient is φ = 49011547200.

The previous prime is 55823610883. The next prime is 55823610901. The reversal of 55823610887 is 78801632855.

It is not a de Polignac number, because 55823610887 - 22 = 55823610883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55823610883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620939 + ... + 705132.

It is an arithmetic number, because the mean of its divisors is an integer number (3938433840).

Almost surely, 255823610887 is an apocalyptic number.

55823610887 is a deficient number, since it is larger than the sum of its proper divisors (7191330553).

55823610887 is a wasteful number, since it uses less digits than its factorization.

55823610887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326214.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 55823610887 in words is "fifty-five billion, eight hundred twenty-three million, six hundred ten thousand, eight hundred eighty-seven".

Divisors: 1 11 43 89 473 979 3827 42097 1326071 14586781 57021053 118020319 627231583 1298223509 5074873717 55823610887