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50688538550 = 25213330723581
BaseRepresentation
bin101111001101010001…
…011011011110110110
311211211120102112221122
4233031101123132312
51312302231213200
635141435143542
73443052316526
oct571521333666
9154746375848
1050688538550
111a5513a4281
1299a75a4bb2
134a1a5c82a0
14264bd63686
1514ba051385
hexbcd45b7b6

50688538550 has 48 divisors (see below), whose sum is σ = 101568051312. Its totient is φ = 18709315200.

The previous prime is 50688538543. The next prime is 50688538567. The reversal of 50688538550 is 5583588605.

It is a super-2 number, since 2×506885385502 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50688538492 and 50688538501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2137760 + ... + 2161340.

It is an arithmetic number, because the mean of its divisors is an integer number (2116001069).

Almost surely, 250688538550 is an apocalyptic number.

50688538550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50688538550 is an abundant number, since it is smaller than the sum of its proper divisors (50879512762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50688538550 is a wasteful number, since it uses less digits than its factorization.

50688538550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26913 (or 26908 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 53.

The spelling of 50688538550 in words is "fifty billion, six hundred eighty-eight million, five hundred thirty-eight thousand, five hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 3307 6614 16535 23581 33070 42991 47162 82675 85982 117905 165350 214955 235810 306553 429910 589525 613106 1074775 1179050 1532765 2149550 3065530 7663825 15327650 77982367 155964734 389911835 779823670 1013770771 1949559175 2027541542 3899118350 5068853855 10137707710 25344269275 50688538550