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56557045051 = 13171090923459
BaseRepresentation
bin110100101011000100…
…000000010100111011
312101222120001120110021
4310223010000110323
51411312100420201
641552033431311
74041351644113
oct645304002473
9171876046407
1056557045051
1121a92a83051
12ab64a0b537
135444374840
142a47504043
151710362ea1
hexd2b10053b

56557045051 has 16 divisors (see below), whose sum is σ = 64499047200. Its totient is φ = 49128933888.

The previous prime is 56557045033. The next prime is 56557045081. The reversal of 56557045051 is 15054075565.

It is a cyclic number.

It is not a de Polignac number, because 56557045051 - 25 = 56557045019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56557044989 and 56557045007.

It is not an unprimeable number, because it can be changed into a prime (56557045081) 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, 2399160 + ... + 2422618.

It is an arithmetic number, because the mean of its divisors is an integer number (4031190450).

Almost surely, 256557045051 is an apocalyptic number.

56557045051 is a deficient number, since it is larger than the sum of its proper divisors (7942002149).

56557045051 is a wasteful number, since it uses less digits than its factorization.

56557045051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34398.

The product of its (nonzero) digits is 525000, while the sum is 43.

The spelling of 56557045051 in words is "fifty-six billion, five hundred fifty-seven million, forty-five thousand, fifty-one".

Divisors: 1 13 17 221 10909 23459 141817 185453 304967 398803 2410889 5184439 255914231 3326885003 4350541927 56557045051