25726601 has 2 divisors, whose sum is σ = 25726602. Its totient is φ = 25726600.

The previous prime is 25726583. The next prime is 25726609. The reversal of 25726601 is 10662752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25452025 + 274576 = 5045^2 + 524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25726601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25726609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863300 + 12863301.

It is an arithmetic number, because the mean of its divisors is an integer number (12863301).

Almost surely, 2^25726601 is an apocalyptic number.

It is an amenable number.

25726601 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726601 is an equidigital number, since it uses as much as digits as its factorization.

25726601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 25726601 is about 5072.1396865623. The cubic root of 25726601 is about 295.2075567000.

The spelling of 25726601 in words is "twenty-five million, seven hundred twenty-six thousand, six hundred one".