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5257519946517 = 31752506648839
BaseRepresentation
bin100110010000001110010…
…0110111101101100010101
3200121121120121022211212010
41030200130212331230111
51142114400101242032
615103134334414433
71051562150122206
oct114403446755425
920547517284763
105257519946517
111747779a45943
1270ab38961419
132c1a220a6147
14142672bbd5ad
1591b6080cccc
hex4c81c9bdb15

5257519946517 has 4 divisors (see below), whose sum is σ = 7010026595360. Its totient is φ = 3505013297676.

The previous prime is 5257519946513. The next prime is 5257519946531. The reversal of 5257519946517 is 7156499157525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5257519946517 - 22 = 5257519946513 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 (5257519946513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876253324417 + ... + 876253324422.

It is an arithmetic number, because the mean of its divisors is an integer number (1752506648840).

Almost surely, 25257519946517 is an apocalyptic number.

It is an amenable number.

5257519946517 is a deficient number, since it is larger than the sum of its proper divisors (1752506648843).

5257519946517 is a wasteful number, since it uses less digits than its factorization.

5257519946517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752506648842.

The product of its digits is 119070000, while the sum is 66.

The spelling of 5257519946517 in words is "five trillion, two hundred fifty-seven billion, five hundred nineteen million, nine hundred forty-six thousand, five hundred seventeen".

Divisors: 1 3 1752506648839 5257519946517