25123000871 has 2 divisors, whose sum is σ = 25123000872. Its totient is φ = 25123000870.

The previous prime is 25123000867. The next prime is 25123000939. The reversal of 25123000871 is 17800032152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25123000871 - 2² = 25123000867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25123000801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561500435 + 12561500436.

It is an arithmetic number, because the mean of its divisors is an integer number (12561500436).

Almost surely, 2^25123000871 is an apocalyptic number.

25123000871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25123000871 is an equidigital number, since it uses as much as digits as its factorization.

25123000871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 25123000871 in words is "twenty-five billion, one hundred twenty-three million, eight hundred seventy-one", and thus it is an aban number.