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53125001000 = 235353125001
BaseRepresentation
bin110001011110011111…
…110010111100101000
312002010101001200002122
4301132133302330220
51332300000013000
640223313050412
73560326025561
oct613637627450
9162111050078
1053125001000
1120591750605
12a367556a08
13501830c546
1427dd795168
1515addcb085
hexc5e7f2f28

53125001000 has 32 divisors (see below), whose sum is σ = 124312504680. Its totient is φ = 21250000000.

The previous prime is 53125000997. The next prime is 53125001011. The reversal of 53125001000 is 10052135.

It can be written as a sum of positive squares in 4 ways, for example, as 8555880004 + 44569120996 = 92498^2 + 211114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53125001000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26561501 + ... + 26563500.

Almost surely, 253125001000 is an apocalyptic number.

53125001000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53125001000 is an abundant number, since it is smaller than the sum of its proper divisors (71187503680).

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

53125001000 is a wasteful number, since it uses less digits than its factorization.

53125001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53125022 (or 53125008 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

Adding to 53125001000 its reverse (10052135), we get a palindrome (53135053135).

The spelling of 53125001000 in words is "fifty-three billion, one hundred twenty-five million, one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 53125001 106250002 212500004 265625005 425000008 531250010 1062500020 1328125025 2125000040 2656250050 5312500100 6640625125 10625000200 13281250250 26562500500 53125001000