25021065067 has 2 divisors, whose sum is σ = 25021065068. Its totient is φ = 25021065066.

The previous prime is 25021065053. The next prime is 25021065077. The reversal of 25021065067 is 76056012052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25021065067 - 2²³ = 25012676459 is a prime.

It is not a weakly prime, because it can be changed into another prime (25021065077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12510532533 + 12510532534.

It is an arithmetic number, because the mean of its divisors is an integer number (12510532534).

Almost surely, 2^25021065067 is an apocalyptic number.

25021065067 is a deficient number, since it is larger than the sum of its proper divisors (1).

25021065067 is an equidigital number, since it uses as much as digits as its factorization.

25021065067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 25021065067 in words is "twenty-five billion, twenty-one million, sixty-five thousand, sixty-seven".