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55380275191 = 757574112743
BaseRepresentation
bin110011100100111010…
…111110111111110111
312021221112202110200101
4303210322332333313
51401404322301231
641235155254531
74000242400153
oct634472767767
9167845673611
1055380275191
11215397a347a
12a8968aa447
1352b7624b07
142975100063
151691db5661
hexce4ebeff7

55380275191 has 8 divisors (see below), whose sum is σ = 55467444384. Its totient is φ = 55293144480.

The previous prime is 55380275161. The next prime is 55380275207. The reversal of 55380275191 is 19157208355.

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 55380275191 - 219 = 55379750903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55380275101) 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, 4339566 + ... + 4352308.

It is an arithmetic number, because the mean of its divisors is an integer number (6933430548).

Almost surely, 255380275191 is an apocalyptic number.

55380275191 is a deficient number, since it is larger than the sum of its proper divisors (87169193).

55380275191 is a wasteful number, since it uses less digits than its factorization.

55380275191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19241.

The product of its (nonzero) digits is 378000, while the sum is 46.

The spelling of 55380275191 in words is "fifty-five billion, three hundred eighty million, two hundred seventy-five thousand, one hundred ninety-one".

Divisors: 1 757 5741 12743 4345937 9646451 73157563 55380275191