25627801 has 2 divisors, whose sum is σ = 25627802. Its totient is φ = 25627800.

The previous prime is 25627799. The next prime is 25627813. The reversal of 25627801 is 10872652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 5593225 = 4476^2 + 2365^2 .

It is a cyclic number.

It is not a de Polignac number, because 25627801 - 2¹ = 25627799 is a prime.

Together with 25627799, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25627001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12813900 + 12813901.

It is an arithmetic number, because the mean of its divisors is an integer number (12813901).

Almost surely, 2^25627801 is an apocalyptic number.

It is an amenable number.

25627801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25627801 is an equidigital number, since it uses as much as digits as its factorization.

25627801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 25627801 is about 5062.3908383293. The cubic root of 25627801 is about 294.8291685442.

The spelling of 25627801 in words is "twenty-five million, six hundred twenty-seven thousand, eight hundred one".