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2550027221 = 71925176387
BaseRepresentation
bin1001011111111110…
…0101001111010101
320120201022210201122
42113333211033111
520210301332341
61101011533325
7120122605460
oct22777451725
96521283648
102550027221
111099473215
125b1bba245
133183c7061
141a29542d7
15edd0d94b
hex97fe53d5

2550027221 has 16 divisors (see below), whose sum is σ = 3079964160. Its totient is φ = 2062422000.

The previous prime is 2550027211. The next prime is 2550027241. The reversal of 2550027221 is 1227200552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2550027221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550027211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811 + ... + 71576.

It is an arithmetic number, because the mean of its divisors is an integer number (192497760).

Almost surely, 22550027221 is an apocalyptic number.

It is an amenable number.

2550027221 is a deficient number, since it is larger than the sum of its proper divisors (529936939).

2550027221 is a wasteful number, since it uses less digits than its factorization.

2550027221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76664.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 2550027221 is about 50497.7942191538. The cubic root of 2550027221 is about 1366.2020693704.

Adding to 2550027221 its reverse (1227200552), we get a palindrome (3777227773).

The spelling of 2550027221 in words is "two billion, five hundred fifty million, twenty-seven thousand, two hundred twenty-one".

Divisors: 1 7 19 133 251 1757 4769 33383 76387 534709 1451353 10159471 19173137 134211959 364289603 2550027221