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55336727649 = 3743103594961
BaseRepresentation
bin110011100010010100…
…110111010001100001
312021211111211000200110
4303202110313101201
51401312200241044
641231002041533
73666203265330
oct634224672141
9167744730613
1055336727649
112151715a575
12a8841a92a9
1352ab5b8638
14296d405d17
15168d1626b9
hexce2537461

55336727649 has 32 divisors (see below), whose sum is σ = 87121475584. Its totient is φ = 30585703680.

The previous prime is 55336727647. The next prime is 55336727681. The reversal of 55336727649 is 94672763355.

It is not a de Polignac number, because 55336727649 - 21 = 55336727647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55336727647) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 204472 + ... + 390489.

It is an arithmetic number, because the mean of its divisors is an integer number (2722546112).

Almost surely, 255336727649 is an apocalyptic number.

It is an amenable number.

55336727649 is a deficient number, since it is larger than the sum of its proper divisors (31784747935).

55336727649 is a wasteful number, since it uses less digits than its factorization.

55336727649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595117.

The product of its digits is 28576800, while the sum is 57.

The spelling of 55336727649 in words is "fifty-five billion, three hundred thirty-six million, seven hundred twenty-seven thousand, six hundred forty-nine".

Divisors: 1 3 7 21 43 103 129 301 309 721 903 2163 4429 13287 31003 93009 594961 1784883 4164727 12494181 25583323 61280983 76749969 179083261 183842949 428966881 537249783 1286900643 2635082269 7905246807 18445575883 55336727649