25885529 has 2 divisors, whose sum is σ = 25885530. Its totient is φ = 25885528.

The previous prime is 25885523. The next prime is 25885537. The reversal of 25885529 is 92558852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25482304 + 403225 = 5048^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 25885529 - 2¹² = 25881433 is a prime.

It is a super-2 number, since 2×25885529² = 1340121223219682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25885529.

It is not a weakly prime, because it can be changed into another prime (25885523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12942764 + 12942765.

It is an arithmetic number, because the mean of its divisors is an integer number (12942765).

Almost surely, 2^25885529 is an apocalyptic number.

It is an amenable number.

25885529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25885529 is an equidigital number, since it uses as much as digits as its factorization.

25885529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 44.

The square root of 25885529 is about 5087.7823263186. The cubic root of 25885529 is about 295.8141981319.

The spelling of 25885529 in words is "twenty-five million, eight hundred eighty-five thousand, five hundred twenty-nine".