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55646562097 = 778831008437
BaseRepresentation
bin110011110100110010…
…110010011100110001
312022122002211020122101
4303310302302130301
51402431004441342
641321430540401
74006654654630
oct636462623461
9168562736571
1055646562097
11216660407a5
12a94bb07701
13532a84a829
14299c619517
1516aa4653b7
hexcf4cb2731

55646562097 has 8 divisors (see below), whose sum is σ = 63604201536. Its totient is φ = 47690955312.

The previous prime is 55646562091. The next prime is 55646562131. The reversal of 55646562097 is 79026564655.

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

It is not a de Polignac number, because 55646562097 - 211 = 55646560049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55646562091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449038 + ... + 559399.

It is an arithmetic number, because the mean of its divisors is an integer number (7950525192).

Almost surely, 255646562097 is an apocalyptic number.

It is an amenable number.

55646562097 is a deficient number, since it is larger than the sum of its proper divisors (7957639439).

55646562097 is a wasteful number, since it uses less digits than its factorization.

55646562097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016327.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 55646562097 in words is "fifty-five billion, six hundred forty-six million, five hundred sixty-two thousand, ninety-seven".

Divisors: 1 7 7883 55181 1008437 7059059 7949508871 55646562097