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55679651965 = 5717229408643
BaseRepresentation
bin110011110110110001…
…000001000001111101
312022201102002101102001
4303312301001001331
51403012442330330
641325012102301
74010536142560
oct636661010175
9168642071361
1055679651965
11216827916a3
12a95b004991
135334665032
1429a2b904d7
1516ad2ee9ca
hexcf6c4107d

55679651965 has 32 divisors (see below), whose sum is σ = 81205735680. Its totient is φ = 35777424384.

The previous prime is 55679651891. The next prime is 55679652043. The reversal of 55679651965 is 56915697655.

55679651965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55679651965 - 27 = 55679651837 is a prime.

It is a super-2 number, since 2×556796519652 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55679651897 and 55679651906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68067 + ... + 340576.

It is an arithmetic number, because the mean of its divisors is an integer number (2537679240).

Almost surely, 255679651965 is an apocalyptic number.

It is an amenable number.

55679651965 is a deficient number, since it is larger than the sum of its proper divisors (25526083715).

55679651965 is a wasteful number, since it uses less digits than its factorization.

55679651965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408901.

The product of its digits is 76545000, while the sum is 64.

The spelling of 55679651965 in words is "fifty-five billion, six hundred seventy-nine million, six hundred fifty-one thousand, nine hundred sixty-five".

Divisors: 1 5 7 17 35 85 119 229 595 1145 1603 3893 8015 19465 27251 136255 408643 2043215 2860501 6946931 14302505 34734655 48628517 93579247 243142585 467896235 655054729 1590847199 3275273645 7954235995 11135930393 55679651965