25065559 has 2 divisors, whose sum is σ = 25065560. Its totient is φ = 25065558.

The previous prime is 25065553. The next prime is 25065563. The reversal of 25065559 is 95556052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25065559 - 2⁵ = 25065527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25065553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12532779 + 12532780.

It is an arithmetic number, because the mean of its divisors is an integer number (12532780).

Almost surely, 2^25065559 is an apocalyptic number.

25065559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25065559 is an equidigital number, since it uses as much as digits as its factorization.

25065559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 25065559 is about 5006.5516076437. The cubic root of 25065559 is about 292.6571449647.

The spelling of 25065559 in words is "twenty-five million, sixty-five thousand, five hundred fifty-nine".