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25003025000 = 23551000121
BaseRepresentation
bin10111010010010010…
…111110001001101000
32101112111121021022222
4113102102332021220
5402201233300000
615253005333212
71543412130422
oct272222761150
971474537288
1025003025000
11a670612828
124a19567208
132486055365
1412d2933812
159b50bda85
hex5d24be268

25003025000 has 48 divisors (see below), whose sum is σ = 58597147980. Its totient is φ = 10001200000.

The previous prime is 25003024987. The next prime is 25003025011. The reversal of 25003025000 is 52030052.

It can be written as a sum of positive squares in 6 ways, for example, as 18164644 + 24984860356 = 4262^2 + 158066^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25003025000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475061 + ... + 525060.

Almost surely, 225003025000 is an apocalyptic number.

25003025000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25003025000 is an abundant number, since it is smaller than the sum of its proper divisors (33594122980).

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

25003025000 is an equidigital number, since it uses as much as digits as its factorization.

25003025000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000152 (or 1000128 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

Adding to 25003025000 its reverse (52030052), we get a palindrome (25055055052).

The spelling of 25003025000 in words is "twenty-five billion, three million, twenty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 3125 5000 6250 12500 25000 1000121 2000242 4000484 5000605 8000968 10001210 20002420 25003025 40004840 50006050 100012100 125015125 200024200 250030250 500060500 625075625 1000121000 1250151250 2500302500 3125378125 5000605000 6250756250 12501512500 25003025000