25375109 has 2 divisors, whose sum is σ = 25375110. Its totient is φ = 25375108.

The previous prime is 25375073. The next prime is 25375153. The reversal of 25375109 is 90157352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15038884 + 10336225 = 3878^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 25375109 - 2¹⁶ = 25309573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25375199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12687554 + 12687555.

It is an arithmetic number, because the mean of its divisors is an integer number (12687555).

Almost surely, 2^25375109 is an apocalyptic number.

It is an amenable number.

25375109 is a deficient number, since it is larger than the sum of its proper divisors (1).

25375109 is an equidigital number, since it uses as much as digits as its factorization.

25375109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 25375109 is about 5037.3712390492. The cubic root of 25375109 is about 293.8569537200.

The spelling of 25375109 in words is "twenty-five million, three hundred seventy-five thousand, one hundred nine".