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57053866879 is a prime number
BaseRepresentation
bin110101001000101011…
…001110101101111111
312110021011220201212201
4311020223032231333
51413321242220004
642113222212331
74056563603212
oct651053165577
9173234821781
1057053866879
11222184696a9
12b0832840a7
1354c3286159
142a934ad779
15173dc9e6a4
hexd48aceb7f

57053866879 has 2 divisors, whose sum is σ = 57053866880. Its totient is φ = 57053866878.

The previous prime is 57053866813. The next prime is 57053866897. The reversal of 57053866879 is 97866835075.

Together with next prime (57053866897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57053866879 - 227 = 56919649151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57053866879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57053869879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28526933439 + 28526933440.

It is an arithmetic number, because the mean of its divisors is an integer number (28526933440).

Almost surely, 257053866879 is an apocalyptic number.

57053866879 is a deficient number, since it is larger than the sum of its proper divisors (1).

57053866879 is an equidigital number, since it uses as much as digits as its factorization.

57053866879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 57053866879 in words is "fifty-seven billion, fifty-three million, eight hundred sixty-six thousand, eight hundred seventy-nine".