25726511 has 2 divisors, whose sum is σ = 25726512. Its totient is φ = 25726510.

The previous prime is 25726499. The next prime is 25726529. The reversal of 25726511 is 11562752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25726511 - 2⁶ = 25726447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25726541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863255 + 12863256.

It is an arithmetic number, because the mean of its divisors is an integer number (12863256).

Almost surely, 2^25726511 is an apocalyptic number.

25726511 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726511 is an equidigital number, since it uses as much as digits as its factorization.

25726511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 25726511 is about 5072.1308145591. The cubic root of 25726511 is about 295.2072124556.

The spelling of 25726511 in words is "twenty-five million, seven hundred twenty-six thousand, five hundred eleven".