25426001 has 2 divisors, whose sum is σ = 25426002. Its totient is φ = 25426000.

The previous prime is 25425989. The next prime is 25426021. The reversal of 25426001 is 10062452.

It is a happy number.

It is an a-pointer prime, because the next prime (25426021) can be obtained adding 25426001 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 12609601 = 3580^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 25426001 - 2⁶ = 25425937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25426021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713000 + 12713001.

It is an arithmetic number, because the mean of its divisors is an integer number (12713001).

Almost surely, 2^25426001 is an apocalyptic number.

It is an amenable number.

25426001 is a deficient number, since it is larger than the sum of its proper divisors (1).

25426001 is an equidigital number, since it uses as much as digits as its factorization.

25426001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25426001 is about 5042.4201530614. The cubic root of 25426001 is about 294.0532744712.

Adding to 25426001 its reverse (10062452), we get a palindrome (35488453).

The spelling of 25426001 in words is "twenty-five million, four hundred twenty-six thousand, one".