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55757295765 = 3259349132533
BaseRepresentation
bin110011111011011001…
…001101000010010101
312022220211012002200100
4303323121031002111
51403142331431030
641340424204313
74012501123413
oct637331150225
9168824162610
1055757295765
11217125a3626
12a981009699
13534777bb02
1429ad2022b3
1516b503a360
hexcfb64d095

55757295765 has 24 divisors (see below), whose sum is σ = 96657046200. Its totient is φ = 29733819264.

The previous prime is 55757295757. The next prime is 55757295767. The reversal of 55757295765 is 56759275755.

55757295765 is a `hidden beast` number, since 5 + 5 + 7 + 57 + 2 + 9 + 576 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16651837764 + 39105458001 = 129042^2 + 197751^2 .

It is not a de Polignac number, because 55757295765 - 23 = 55757295757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55757295767) 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 23 ways as a sum of consecutive naturals, for example, 354439 + ... + 486971.

It is an arithmetic number, because the mean of its divisors is an integer number (4027376925).

Almost surely, 255757295765 is an apocalyptic number.

It is an amenable number.

55757295765 is a deficient number, since it is larger than the sum of its proper divisors (40899750435).

55757295765 is a wasteful number, since it uses less digits than its factorization.

55757295765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141893 (or 141890 counting only the distinct ones).

The product of its digits is 115762500, while the sum is 63.

The spelling of 55757295765 in words is "fifty-five billion, seven hundred fifty-seven million, two hundred ninety-five thousand, seven hundred sixty-five".

Divisors: 1 3 5 9 15 45 9349 28047 46745 84141 132533 140235 397599 420705 662665 1192797 1987995 5963985 1239051017 3717153051 6195255085 11151459153 18585765255 55757295765