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53511256131 = 3431720324113
BaseRepresentation
bin110001110101100001…
…001111100001000011
312010010021212110112020
4301311201033201003
51334042340144011
640325511532523
73603026113044
oct616541174103
9163107773466
1053511256131
112076a788823
12a45498a143
13507a34a888
142838bbc8cb
1515d2c77006
hexc7584f843

53511256131 has 16 divisors (see below), whose sum is σ = 73014877056. Its totient is φ = 34841068416.

The previous prime is 53511256111. The next prime is 53511256147. The reversal of 53511256131 is 13165211535.

It is not a de Polignac number, because 53511256131 - 219 = 53510731843 is a prime.

It is a super-2 number, since 2×535112561312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53511256092 and 53511256101.

It is not an unprimeable number, because it can be changed into a prime (53511256111) 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 15 ways as a sum of consecutive naturals, for example, 2207131 + ... + 2231243.

It is an arithmetic number, because the mean of its divisors is an integer number (4563429816).

Almost surely, 253511256131 is an apocalyptic number.

53511256131 is a deficient number, since it is larger than the sum of its proper divisors (19503620925).

53511256131 is a wasteful number, since it uses less digits than its factorization.

53511256131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41362.

The product of its digits is 13500, while the sum is 33.

Adding to 53511256131 its reverse (13165211535), we get a palindrome (66676467666).

The spelling of 53511256131 in words is "fifty-three billion, five hundred eleven million, two hundred fifty-six thousand, one hundred thirty-one".

Divisors: 1 3 43 129 17203 24113 51609 72339 739729 1036859 2219187 3110577 414815939 1244447817 17837085377 53511256131