25690801 has 2 divisors, whose sum is σ = 25690802. Its totient is φ = 25690800.

The previous prime is 25690799. The next prime is 25690843. The reversal of 25690801 is 10809652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 11553201 = 3760^2 + 3399^2 .

It is a cyclic number.

It is not a de Polignac number, because 25690801 - 2¹ = 25690799 is a prime.

Together with 25690799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25690501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12845400 + 12845401.

It is an arithmetic number, because the mean of its divisors is an integer number (12845401).

Almost surely, 2^25690801 is an apocalyptic number.

It is an amenable number.

25690801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25690801 is an equidigital number, since it uses as much as digits as its factorization.

25690801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 25690801 is about 5068.6093753613. The cubic root of 25690801 is about 295.0705605417.

The spelling of 25690801 in words is "twenty-five million, six hundred ninety thousand, eight hundred one".