25034909 has 2 divisors, whose sum is σ = 25034910. Its totient is φ = 25034908.

The previous prime is 25034881. The next prime is 25034923. The reversal of 25034909 is 90943052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25030009 + 4900 = 5003^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 25034909 - 2²⁴ = 8257693 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25034959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12517454 + 12517455.

It is an arithmetic number, because the mean of its divisors is an integer number (12517455).

Almost surely, 2^25034909 is an apocalyptic number.

It is an amenable number.

25034909 is a deficient number, since it is larger than the sum of its proper divisors (1).

25034909 is an equidigital number, since it uses as much as digits as its factorization.

25034909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 25034909 is about 5003.4896822118. The cubic root of 25034909 is about 292.5378099028.

The spelling of 25034909 in words is "twenty-five million, thirty-four thousand, nine hundred nine".