25425007 has 2 divisors, whose sum is σ = 25425008. Its totient is φ = 25425006.

The previous prime is 25424989. The next prime is 25425011. The reversal of 25425007 is 70052452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25425007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25425067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712503 + 12712504.

It is an arithmetic number, because the mean of its divisors is an integer number (12712504).

Almost surely, 2^25425007 is an apocalyptic number.

25425007 is a deficient number, since it is larger than the sum of its proper divisors (1).

25425007 is an equidigital number, since it uses as much as digits as its factorization.

25425007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 25425007 is about 5042.3215883162. The cubic root of 25425007 is about 294.0494425308.

Adding to 25425007 its reverse (70052452), we get a palindrome (95477459).

The spelling of 25425007 in words is "twenty-five million, four hundred twenty-five thousand, seven".