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8725378033 is a prime number
BaseRepresentation
bin10000010000001001…
…01011001111110001
3211112002100010111101
420020010223033301
5120332144044113
64001451044401
7426136326631
oct101004531761
924462303441
108725378033
113778280729
121836140701
13a908c97a8
145cab6a6c1
153610322dd
hex20812b3f1

8725378033 has 2 divisors, whose sum is σ = 8725378034. Its totient is φ = 8725378032.

The previous prime is 8725378019. The next prime is 8725378069. The reversal of 8725378033 is 3308735278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4807619569 + 3917758464 = 69337^2 + 62592^2 .

It is a cyclic number.

It is not a de Polignac number, because 8725378033 - 217 = 8725246961 is a prime.

It is a super-2 number, since 2×87253780332 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8725378433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362689016 + 4362689017.

It is an arithmetic number, because the mean of its divisors is an integer number (4362689017).

Almost surely, 28725378033 is an apocalyptic number.

It is an amenable number.

8725378033 is a deficient number, since it is larger than the sum of its proper divisors (1).

8725378033 is an equidigital number, since it uses as much as digits as its factorization.

8725378033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 8725378033 is about 93409.7320036836. The cubic root of 8725378033 is about 2058.7079931344.

The spelling of 8725378033 in words is "eight billion, seven hundred twenty-five million, three hundred seventy-eight thousand, thirty-three".