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55045907471 = 73754053527
BaseRepresentation
bin110011010000111111…
…011110010000001111
312021002020120211101202
4303100333132100033
51400213223014341
641142052500115
73656042331152
oct632077362017
9167066524352
1055045907471
1121387a86015
12a80291a63b
135263282ca9
142942941c99
15167286879b
hexcd0fde40f

55045907471 has 4 divisors (see below), whose sum is σ = 55799961072. Its totient is φ = 54291853872.

The previous prime is 55045907461. The next prime is 55045907491. The reversal of 55045907471 is 17470954055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17470954055 = 53494190811.

It is a cyclic number.

It is not a de Polignac number, because 55045907471 - 26 = 55045907407 is a prime.

It is a super-3 number, since 3×550459074713 (a number of 33 digits) contains 333 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 (55045907461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377026691 + ... + 377026836.

It is an arithmetic number, because the mean of its divisors is an integer number (13949990268).

Almost surely, 255045907471 is an apocalyptic number.

55045907471 is a deficient number, since it is larger than the sum of its proper divisors (754053601).

55045907471 is an equidigital number, since it uses as much as digits as its factorization.

55045907471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754053600.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 55045907471 in words is "fifty-five billion, forty-five million, nine hundred seven thousand, four hundred seventy-one".

Divisors: 1 73 754053527 55045907471