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125132505050 = 2527357521443
BaseRepresentation
bin111010010001001111…
…0100111111111011010
3102221222200212212211002
41310202132213333122
54022232410130200
6133252435505002
712016620512660
oct1644236477732
9387880785732
10125132505050
1149083045133
1220302758162
13ba5262a9c7
1460b0c5ac30
1533c5882bd5
hex1d227a7fda

125132505050 has 24 divisors (see below), whose sum is σ = 265995954336. Its totient is φ = 42902573040.

The previous prime is 125132505019. The next prime is 125132505053. The reversal of 125132505050 is 50505231521.

It is not an unprimeable number, because it can be changed into a prime (125132505053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178760372 + ... + 178761071.

It is an arithmetic number, because the mean of its divisors is an integer number (11083164764).

Almost surely, 2125132505050 is an apocalyptic number.

125132505050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125132505050 is an abundant number, since it is smaller than the sum of its proper divisors (140863449286).

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

125132505050 is a wasteful number, since it uses less digits than its factorization.

125132505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357521462 (or 357521457 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 125132505050 its reverse (50505231521), we get a palindrome (175637736571).

The spelling of 125132505050 in words is "one hundred twenty-five billion, one hundred thirty-two million, five hundred five thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 357521443 715042886 1787607215 2502650101 3575214430 5005300202 8938036075 12513250505 17876072150 25026501010 62566252525 125132505050