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56775017725 = 5217499926723
BaseRepresentation
bin110100111000000011…
…100000010011111101
312102112202012201202021
4310320003200103331
51412233401031400
642025421400141
74046636455006
oct647003402375
9172482181667
1056775017725
1122095021158
12b005a09051
13547a58255a
142a684441ad
15172456c71a
hexd380e04fd

56775017725 has 24 divisors (see below), whose sum is σ = 74559960000. Its totient is φ = 42738097920.

The previous prime is 56775017723. The next prime is 56775017731. The reversal of 56775017725 is 52771057765.

It is not a de Polignac number, because 56775017725 - 21 = 56775017723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56775017723) 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 23 ways as a sum of consecutive naturals, for example, 2111214 + ... + 2137936.

It is an arithmetic number, because the mean of its divisors is an integer number (3106665000).

Almost surely, 256775017725 is an apocalyptic number.

It is an amenable number.

56775017725 is a deficient number, since it is larger than the sum of its proper divisors (17784942275).

56775017725 is a wasteful number, since it uses less digits than its factorization.

56775017725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31749 (or 31744 counting only the distinct ones).

The product of its (nonzero) digits is 3601500, while the sum is 52.

The spelling of 56775017725 in words is "fifty-six billion, seven hundred seventy-five million, seventeen thousand, seven hundred twenty-five".

Divisors: 1 5 17 25 85 425 4999 24995 26723 84983 124975 133615 424915 454291 668075 2124575 2271455 11357275 133588277 667941385 2271000709 3339706925 11355003545 56775017725