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55530331535131 = 647636071349339
BaseRepresentation
bin11001010000001001010011…
…01011110111011100011011
321021121122111021121201212121
430220010221223313130123
524234302104333111011
6314034140535122111
714460635245022335
oct1450045153673433
9237548437551777
1055530331535131
111676a31052a352
12628a197813337
1324ca6458b981b
14d9d97a680455
15664710c7ae71
hex328129af771b

55530331535131 has 8 divisors (see below), whose sum is σ = 55617074530560. Its totient is φ = 55443591366888.

The previous prime is 55530331535093. The next prime is 55530331535149. The reversal of 55530331535131 is 13153513303555.

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 55530331535131 - 213 = 55530331526939 is a prime.

It is a super-2 number, since 2×555303315351312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55530331565131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40479060 + ... + 41828398.

It is an arithmetic number, because the mean of its divisors is an integer number (6952134316320).

Almost surely, 255530331535131 is an apocalyptic number.

55530331535131 is a deficient number, since it is larger than the sum of its proper divisors (86742995429).

55530331535131 is a wasteful number, since it uses less digits than its factorization.

55530331535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413593.

The product of its (nonzero) digits is 759375, while the sum is 43.

Adding to 55530331535131 its reverse (13153513303555), we get a palindrome (68683844838686).

The spelling of 55530331535131 in words is "fifty-five trillion, five hundred thirty billion, three hundred thirty-one million, five hundred thirty-five thousand, one hundred thirty-one".

Divisors: 1 647 63607 1349339 41153729 873022333 85827405773 55530331535131