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55163075415 = 3572039257657
BaseRepresentation
bin110011010111111110…
…011011101101010111
312021101102001120121020
4303113332123231113
51400433221403130
641201440052223
73661664255520
oct632776335527
9167342046536
1055163075415
1121438133028
12a836004073
135281627b36
142954321847
15167ccaee10
hexcd7f9bb57

55163075415 has 32 divisors (see below), whose sum is σ = 100919485440. Its totient is φ = 25204940544.

The previous prime is 55163075399. The next prime is 55163075419. The reversal of 55163075415 is 51457036155.

It is not a de Polignac number, because 55163075415 - 24 = 55163075399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55163075419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85267 + ... + 342923.

It is an arithmetic number, because the mean of its divisors is an integer number (3153733920).

Almost surely, 255163075415 is an apocalyptic number.

55163075415 is a deficient number, since it is larger than the sum of its proper divisors (45756410025).

55163075415 is a wasteful number, since it uses less digits than its factorization.

55163075415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259711.

The product of its (nonzero) digits is 315000, while the sum is 42.

The spelling of 55163075415 in words is "fifty-five billion, one hundred sixty-three million, seventy-five thousand, four hundred fifteen".

Divisors: 1 3 5 7 15 21 35 105 2039 6117 10195 14273 30585 42819 71365 214095 257657 772971 1288285 1803599 3864855 5410797 9017995 27053985 525362623 1576087869 2626813115 3677538361 7880439345 11032615083 18387691805 55163075415