25514009 has 2 divisors, whose sum is σ = 25514010. Its totient is φ = 25514008.

The previous prime is 25513987. The next prime is 25514029. The reversal of 25514009 is 90041552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21187609 + 4326400 = 4603^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 25514009 - 2²⁰ = 24465433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25514029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12757004 + 12757005.

It is an arithmetic number, because the mean of its divisors is an integer number (12757005).

Almost surely, 2^25514009 is an apocalyptic number.

It is an amenable number.

25514009 is a deficient number, since it is larger than the sum of its proper divisors (1).

25514009 is an equidigital number, since it uses as much as digits as its factorization.

25514009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25514009 is about 5051.1393764180. The cubic root of 25514009 is about 294.3921564312.

The spelling of 25514009 in words is "twenty-five million, five hundred fourteen thousand, nine".