25041109 has 2 divisors, whose sum is σ = 25041110. Its totient is φ = 25041108.

The previous prime is 25041101. The next prime is 25041127. The reversal of 25041109 is 90114052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 10956100 = 3753^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 25041109 - 2³ = 25041101 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25041109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25041101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520554 + 12520555.

It is an arithmetic number, because the mean of its divisors is an integer number (12520555).

Almost surely, 2^25041109 is an apocalyptic number.

It is an amenable number.

25041109 is a deficient number, since it is larger than the sum of its proper divisors (1).

25041109 is an equidigital number, since it uses as much as digits as its factorization.

25041109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 25041109 is about 5004.1092114381. The cubic root of 25041109 is about 292.5619573138.

The spelling of 25041109 in words is "twenty-five million, forty-one thousand, one hundred nine".