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56387660207 is a prime number
BaseRepresentation
bin110100100000111101…
…110110100110101111
312101112202022221010112
4310200331312212233
51410440220111312
641523143130235
74034224126544
oct644075664657
9171482287115
1056387660207
1121a0640077a
12ab1814397b
135418249518
142a2cc10bcb
151700554d22
hexd20f769af

56387660207 has 2 divisors, whose sum is σ = 56387660208. Its totient is φ = 56387660206.

The previous prime is 56387660183. The next prime is 56387660279. The reversal of 56387660207 is 70206678365.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56387660207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56387660297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28193830103 + 28193830104.

It is an arithmetic number, because the mean of its divisors is an integer number (28193830104).

Almost surely, 256387660207 is an apocalyptic number.

56387660207 is a deficient number, since it is larger than the sum of its proper divisors (1).

56387660207 is an equidigital number, since it uses as much as digits as its factorization.

56387660207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 56387660207 in words is "fifty-six billion, three hundred eighty-seven million, six hundred sixty thousand, two hundred seven".