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55615560013 = 1331138003871
BaseRepresentation
bin110011110010111100…
…100001100101001101
312022112221111011210001
4303302330201211031
51402400040410023
641314402244301
74006130313556
oct636274414515
9168487434701
1055615560013
112164a596442
12a941656691
1353242b46c0
14299846932d
1516a788e6ad
hexcf2f2194d

55615560013 has 8 divisors (see below), whose sum is σ = 61825734656. Its totient is φ = 49681393200.

The previous prime is 55615560001. The next prime is 55615560043. The reversal of 55615560013 is 31006551655.

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 55615560013 - 25 = 55615559981 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 (55615560043) 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, 69001533 + ... + 69002338.

It is an arithmetic number, because the mean of its divisors is an integer number (7728216832).

Almost surely, 255615560013 is an apocalyptic number.

It is an amenable number.

55615560013 is a deficient number, since it is larger than the sum of its proper divisors (6210174643).

55615560013 is a wasteful number, since it uses less digits than its factorization.

55615560013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138003915.

The product of its (nonzero) digits is 67500, while the sum is 37.

The spelling of 55615560013 in words is "fifty-five billion, six hundred fifteen million, five hundred sixty thousand, thirteen".

Divisors: 1 13 31 403 138003871 1794050323 4278120001 55615560013