25507007 has 2 divisors, whose sum is σ = 25507008. Its totient is φ = 25507006.

The previous prime is 25506989. The next prime is 25507019. The reversal of 25507007 is 70070552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25507007 - 2⁸ = 25506751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25507067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12753503 + 12753504.

It is an arithmetic number, because the mean of its divisors is an integer number (12753504).

Almost surely, 2^25507007 is an apocalyptic number.

25507007 is a deficient number, since it is larger than the sum of its proper divisors (1).

25507007 is an equidigital number, since it uses as much as digits as its factorization.

25507007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 25507007 is about 5050.4462179099. The cubic root of 25507007 is about 294.3652232213.

Adding to 25507007 its reverse (70070552), we get a palindrome (95577559).

The spelling of 25507007 in words is "twenty-five million, five hundred seven thousand, seven".