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56717065725 = 352756227543
BaseRepresentation
bin110100110100100110…
…011011110111111101
312102101201011110112220
4310310212123313331
51412124032100400
642015551315553
74045334050515
oct646446336775
9172351143486
1056717065725
1122065339a41
12abaa51bbb9
13546b571828
142a6087a845
15171e4217a0
hexd3499bdfd

56717065725 has 12 divisors (see below), whose sum is σ = 93772215456. Its totient is φ = 30249101680.

The previous prime is 56717065721. The next prime is 56717065733. The reversal of 56717065725 is 52756071765.

It is not a de Polignac number, because 56717065725 - 22 = 56717065721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56717065721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378113697 + ... + 378113846.

It is an arithmetic number, because the mean of its divisors is an integer number (7814351288).

Almost surely, 256717065725 is an apocalyptic number.

It is an amenable number.

56717065725 is a deficient number, since it is larger than the sum of its proper divisors (37055149731).

56717065725 is a wasteful number, since it uses less digits than its factorization.

56717065725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756227556 (or 756227551 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 51.

The spelling of 56717065725 in words is "fifty-six billion, seven hundred seventeen million, sixty-five thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 756227543 2268682629 3781137715 11343413145 18905688575 56717065725