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56531225223 = 32115310774009
BaseRepresentation
bin110100101001100001…
…100000101010000111
312101220202110210022100
4310221201200222013
51411233443201343
641545312203143
74040616325464
oct645141405207
9171822423270
1056531225223
1121a7a448250
12ab582394b3
13543bc04435
142a43d0266b
15170ce629d3
hexd29860a87

56531225223 has 24 divisors (see below), whose sum is σ = 90760260240. Its totient is φ = 33614904960.

The previous prime is 56531225221. The next prime is 56531225263. The reversal of 56531225223 is 32252213565.

56531225223 is a `hidden beast` number, since 5 + 6 + 5 + 3 + 122 + 522 + 3 = 666.

It is not a de Polignac number, because 56531225223 - 21 = 56531225221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56531225221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5381758 + ... + 5392251.

It is an arithmetic number, because the mean of its divisors is an integer number (3781677510).

Almost surely, 256531225223 is an apocalyptic number.

56531225223 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56531225223 is a deficient number, since it is larger than the sum of its proper divisors (34229035017).

56531225223 is a wasteful number, since it uses less digits than its factorization.

56531225223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10774079 (or 10774076 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 56531225223 its reverse (32252213565), we get a palindrome (88783438788).

The spelling of 56531225223 in words is "fifty-six billion, five hundred thirty-one million, two hundred twenty-five thousand, two hundred twenty-three".

Divisors: 1 3 9 11 33 53 99 159 477 583 1749 5247 10774009 32322027 96966081 118514099 355542297 571022477 1066626891 1713067431 5139202293 6281247247 18843741741 56531225223