Search a number
-
+
25071020159 is a prime number
BaseRepresentation
bin10111010110010110…
…010110100001111111
32101201020112210011012
4113112112112201333
5402321140121114
615303434545435
71545166104143
oct272626264177
971636483135
1025071020159
11a6a5a34579
124a3829827b
132497171493
1412db993223
159bb05063e
hex5d659687f

25071020159 has 2 divisors, whose sum is σ = 25071020160. Its totient is φ = 25071020158.

The previous prime is 25071020141. The next prime is 25071020203. The reversal of 25071020159 is 95102017052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25071020159 - 224 = 25054242943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25071020129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12535510079 + 12535510080.

It is an arithmetic number, because the mean of its divisors is an integer number (12535510080).

Almost surely, 225071020159 is an apocalyptic number.

25071020159 is a deficient number, since it is larger than the sum of its proper divisors (1).

25071020159 is an equidigital number, since it uses as much as digits as its factorization.

25071020159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 25071020159 in words is "twenty-five billion, seventy-one million, twenty thousand, one hundred fifty-nine".