Search a number
-
+
51552207641757 = 324182738618783
BaseRepresentation
bin10111011100010111011110…
…00001100001110010011101
320202112100020222200101122210
423232023233001201302131
523224112410124014012
6301350431322031033
713600344522606564
oct1356135701416235
9222470228611583
1051552207641757
1115476194283449
1259471b6048479
13229c477084ca4
14ca31d6870bdb
155e5ed05ca23c
hex2ee2ef061c9d

51552207641757 has 16 divisors (see below), whose sum is σ = 69029840613888. Its totient is φ = 34221391057920.

The previous prime is 51552207641729. The next prime is 51552207641761. The reversal of 51552207641757 is 75714670225515.

It is not a de Polignac number, because 51552207641757 - 212 = 51552207637661 is a prime.

It is a super-2 number, since 2×515522076417572 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51552207641697 and 51552207641706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552207641707) 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, 1671988 + ... + 10290770.

It is an arithmetic number, because the mean of its divisors is an integer number (4314365038368).

Almost surely, 251552207641757 is an apocalyptic number.

It is an amenable number.

51552207641757 is a deficient number, since it is larger than the sum of its proper divisors (17477632972131).

51552207641757 is a wasteful number, since it uses less digits than its factorization.

51552207641757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627300.

The product of its (nonzero) digits is 20580000, while the sum is 57.

The spelling of 51552207641757 in words is "fifty-one trillion, five hundred fifty-two billion, two hundred seven million, six hundred forty-one thousand, seven hundred fifty-seven".

Divisors: 1 3 241 723 8273 24819 1993793 5981379 8618783 25856349 2077126703 6231380109 71303191759 213909575277 17184069213919 51552207641757