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56555045 = 523491783
BaseRepresentation
bin1101011110111…
…1011000100101
310221102021221022
43113233120211
5103434230140
65340100525
71254465341
oct327573045
9127367838
1056555045
1129a18708
1216b34745
13b941c31
147722621
154e720b5
hex35ef625

56555045 has 8 divisors (see below), whose sum is σ = 70816896. Its totient is φ = 43276816.

The previous prime is 56555033. The next prime is 56555047. The reversal of 56555045 is 54055565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56555045 - 24 = 56555029 is a prime.

It is a super-2 number, since 2×565550452 = 6396946229904050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56554996 and 56555014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56555047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245777 + ... + 246006.

It is an arithmetic number, because the mean of its divisors is an integer number (8852112).

Almost surely, 256555045 is an apocalyptic number.

It is an amenable number.

56555045 is a deficient number, since it is larger than the sum of its proper divisors (14261851).

56555045 is a wasteful number, since it uses less digits than its factorization.

56555045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491811.

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 56555045 is about 7520.3088367433. The cubic root of 56555045 is about 383.8460867730.

The spelling of 56555045 in words is "fifty-six million, five hundred fifty-five thousand, forty-five".

Divisors: 1 5 23 115 491783 2458915 11311009 56555045