25121040107 has 2 divisors, whose sum is σ = 25121040108. Its totient is φ = 25121040106.

The previous prime is 25121040083. The next prime is 25121040143. The reversal of 25121040107 is 70104012152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25121040107 - 2¹⁸ = 25120777963 is a prime.

It is not a weakly prime, because it can be changed into another prime (25121040167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12560520053 + 12560520054.

It is an arithmetic number, because the mean of its divisors is an integer number (12560520054).

Almost surely, 2^25121040107 is an apocalyptic number.

25121040107 is a deficient number, since it is larger than the sum of its proper divisors (1).

25121040107 is an equidigital number, since it uses as much as digits as its factorization.

25121040107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 25121040107 its reverse (70104012152), we get a palindrome (95225052259).

The spelling of 25121040107 in words is "twenty-five billion, one hundred twenty-one million, forty thousand, one hundred seven".