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52805055025557 = 325867228336173
BaseRepresentation
bin11000000000110101000101…
…00011000001000110010101
320220222010002002001202112100
430000122202203001012111
523410124223041304212
6304150150221312313
714060016326634102
oct1400324243010625
9226863062052470
1052805055025557
1115909552a3413a
125b09b82105699
1323606592ba2a3
14d07ac7925aa9
156188a9b04bdc
hex3006a28c1195

52805055025557 has 6 divisors (see below), whose sum is σ = 76273968370262. Its totient is φ = 35203370017032.

The previous prime is 52805055025529. The next prime is 52805055025561. The reversal of 52805055025557 is 75552055050825.

52805055025557 is a `hidden beast` number, since 5 + 2 + 80 + 5 + 0 + 5 + 5 + 0 + 2 + 5 + 557 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31661620981956 + 21143434043601 = 5626866^2 + 4598199^2 .

It is not a de Polignac number, because 52805055025557 - 224 = 52805038248341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52805055025507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2933614168078 + ... + 2933614168095.

Almost surely, 252805055025557 is an apocalyptic number.

It is an amenable number.

52805055025557 is a deficient number, since it is larger than the sum of its proper divisors (23468913344705).

52805055025557 is a wasteful number, since it uses less digits than its factorization.

52805055025557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867228336179 (or 5867228336176 counting only the distinct ones).

The product of its (nonzero) digits is 17500000, while the sum is 54.

The spelling of 52805055025557 in words is "fifty-two trillion, eight hundred five billion, fifty-five million, twenty-five thousand, five hundred fifty-seven".

Divisors: 1 3 9 5867228336173 17601685008519 52805055025557