25070009 has 2 divisors, whose sum is σ = 25070010. Its totient is φ = 25070008.

The previous prime is 25069991. The next prime is 25070039. The reversal of 25070009 is 90007052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25030009 + 40000 = 5003^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 25070009 - 2¹² = 25065913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25070039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12535004 + 12535005.

It is an arithmetic number, because the mean of its divisors is an integer number (12535005).

Almost surely, 2^25070009 is an apocalyptic number.

It is an amenable number.

25070009 is a deficient number, since it is larger than the sum of its proper divisors (1).

25070009 is an equidigital number, since it uses as much as digits as its factorization.

25070009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 25070009 is about 5006.9960055906. The cubic root of 25070009 is about 292.6744628474.

The spelling of 25070009 in words is "twenty-five million, seventy thousand, nine".