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56225572287 = 3733594791493
BaseRepresentation
bin110100010111010011…
…100010010110111111
312101010110100000022020
4310113103202112333
51410122221303122
641455113051223
74030215323163
oct642723422677
9171113300266
1056225572287
1121932962715
12aa919b6b13
1353c07a7601
142a1549aca3
1516e11d8c5c
hexd174e25bf

56225572287 has 32 divisors (see below), whose sum is σ = 76416307200. Its totient is φ = 36765649152.

The previous prime is 56225572241. The next prime is 56225572303. The reversal of 56225572287 is 78227552265.

It is not a de Polignac number, because 56225572287 - 28 = 56225572031 is a prime.

It is a super-2 number, since 2×562255722872 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56225572087) 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, 37658713 + ... + 37660205.

It is an arithmetic number, because the mean of its divisors is an integer number (2388009600).

Almost surely, 256225572287 is an apocalyptic number.

56225572287 is a deficient number, since it is larger than the sum of its proper divisors (20190734913).

56225572287 is a wasteful number, since it uses less digits than its factorization.

56225572287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

The product of its digits is 4704000, while the sum is 51.

The spelling of 56225572287 in words is "fifty-six billion, two hundred twenty-five million, five hundred seventy-two thousand, two hundred eighty-seven".

Divisors: 1 3 73 219 359 479 1077 1437 1493 4479 26207 34967 78621 104901 108989 171961 326967 515883 535987 715147 1607961 2145441 12553153 37659459 39127051 52205731 117381153 156617193 256737773 770213319 18741857429 56225572287