25585069 has 2 divisors, whose sum is σ = 25585070. Its totient is φ = 25585068.

The previous prime is 25585067. The next prime is 25585111. The reversal of 25585069 is 96058552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23639044 + 1946025 = 4862^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 25585069 - 2¹ = 25585067 is a prime.

It is a super-2 number, since 2×25585069² = 1309191511469522, which contains 22 as substring.

Together with 25585067, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25585067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12792534 + 12792535.

It is an arithmetic number, because the mean of its divisors is an integer number (12792535).

Almost surely, 2^25585069 is an apocalyptic number.

It is an amenable number.

25585069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25585069 is an equidigital number, since it uses as much as digits as its factorization.

25585069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 25585069 is about 5058.1685420713. The cubic root of 25585069 is about 294.6652105456.

The spelling of 25585069 in words is "twenty-five million, five hundred eighty-five thousand, sixty-nine".