25059709 has 2 divisors, whose sum is σ = 25059710. Its totient is φ = 25059708.

The previous prime is 25059707. The next prime is 25059737. The reversal of 25059709 is 90795052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 3250809 = 4670^2 + 1803^2 .

It is a cyclic number.

It is not a de Polignac number, because 25059709 - 2¹ = 25059707 is a prime.

Together with 25059707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25059701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12529854 + 12529855.

It is an arithmetic number, because the mean of its divisors is an integer number (12529855).

Almost surely, 2^25059709 is an apocalyptic number.

It is an amenable number.

25059709 is a deficient number, since it is larger than the sum of its proper divisors (1).

25059709 is an equidigital number, since it uses as much as digits as its factorization.

25059709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 25059709 is about 5005.9673390864. The cubic root of 25059709 is about 292.6343756407.

The spelling of 25059709 in words is "twenty-five million, fifty-nine thousand, seven hundred nine".