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53125718385337 = 13172159531113149
BaseRepresentation
bin11000001010001010010111…
…00100101010001010111001
320222002202202122202020001221
430011011023210222022321
523430402432401312322
6304553341302112041
714122130553342043
oct1405051344521271
9228082678666057
1053125718385337
1115a22544053484
125b6015371b621
1323849700746b0
14d194270aaa93
15621dc63b59c7
hex30514b92a2b9

53125718385337 has 16 divisors (see below), whose sum is σ = 60578077165200. Its totient is φ = 46154215084032.

The previous prime is 53125718385331. The next prime is 53125718385349. The reversal of 53125718385337 is 73358381752135.

It can be written as a sum of positive squares in 8 ways, for example, as 13483848385296 + 39641870000041 = 3672036^2 + 6296179^2 .

It is a cyclic number.

It is not a de Polignac number, because 53125718385337 - 27 = 53125718385209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53125718385331) 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, 47169039 + ... + 48282187.

It is an arithmetic number, because the mean of its divisors is an integer number (3786129822825).

Almost surely, 253125718385337 is an apocalyptic number.

It is an amenable number.

53125718385337 is a deficient number, since it is larger than the sum of its proper divisors (7452358779863).

53125718385337 is a wasteful number, since it uses less digits than its factorization.

53125718385337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329132.

The product of its digits is 63504000, while the sum is 61.

The spelling of 53125718385337 in words is "fifty-three trillion, one hundred twenty-five billion, seven hundred eighteen million, three hundred eighty-five thousand, three hundred thirty-seven".

Divisors: 1 13 17 221 215953 1113149 2807389 3671201 14470937 18923533 47725613 246005929 240387865997 3125042257961 4086593721949 53125718385337