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55877214605 = 543325809337
BaseRepresentation
bin110100000010100010…
…101010000110001101
312100020011211121101212
4310002202222012031
51403414031331410
641400350344205
74015455326132
oct640242520615
9170204747355
1055877214605
112177425a403
12a9b51bb065
135366577ac4
1429c10da589
1516c0826b05
hexd028aa18d

55877214605 has 8 divisors (see below), whose sum is σ = 67207516152. Its totient is φ = 44598532608.

The previous prime is 55877214539. The next prime is 55877214607. The reversal of 55877214605 is 50641277855.

It can be written as a sum of positive squares in 4 ways, for example, as 745235401 + 55131979204 = 27299^2 + 234802^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55877214605 - 212 = 55877210509 is a prime.

It is a super-2 number, since 2×558772146052 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55877214607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12902504 + ... + 12906833.

It is an arithmetic number, because the mean of its divisors is an integer number (8400939519).

Almost surely, 255877214605 is an apocalyptic number.

It is an amenable number.

55877214605 is a deficient number, since it is larger than the sum of its proper divisors (11330301547).

55877214605 is a wasteful number, since it uses less digits than its factorization.

55877214605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25809775.

The product of its (nonzero) digits is 2352000, while the sum is 50.

The spelling of 55877214605 in words is "fifty-five billion, eight hundred seventy-seven million, two hundred fourteen thousand, six hundred five".

Divisors: 1 5 433 2165 25809337 129046685 11175442921 55877214605