25696993001 has 2 divisors, whose sum is σ = 25696993002. Its totient is φ = 25696993000.

The previous prime is 25696992983. The next prime is 25696993039. The reversal of 25696993001 is 10039969652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17520493225 + 8176499776 = 132365^2 + 90424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25696993001 is a prime.

It is not a weakly prime, because it can be changed into another prime (25696923001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12848496500 + 12848496501.

It is an arithmetic number, because the mean of its divisors is an integer number (12848496501).

Almost surely, 2^25696993001 is an apocalyptic number.

It is an amenable number.

25696993001 is a deficient number, since it is larger than the sum of its proper divisors (1).

25696993001 is an equidigital number, since it uses as much as digits as its factorization.

25696993001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 50.

The spelling of 25696993001 in words is "twenty-five billion, six hundred ninety-six million, nine hundred ninety-three thousand, one".