25685753 has 2 divisors, whose sum is σ = 25685754. Its totient is φ = 25685752.

The previous prime is 25685743. The next prime is 25685771. The reversal of 25685753 is 35758652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21409129 + 4276624 = 4627^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 25685753 - 2⁸ = 25685497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25685753.

It is not a weakly prime, because it can be changed into another prime (25685713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12842876 + 12842877.

It is an arithmetic number, because the mean of its divisors is an integer number (12842877).

Almost surely, 2^25685753 is an apocalyptic number.

It is an amenable number.

25685753 is a deficient number, since it is larger than the sum of its proper divisors (1).

25685753 is an equidigital number, since it uses as much as digits as its factorization.

25685753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The square root of 25685753 is about 5068.1113839378. Note that the first 3 decimals coincide. The cubic root of 25685753 is about 295.0512330820.

The spelling of 25685753 in words is "twenty-five million, six hundred eighty-five thousand, seven hundred fifty-three".