25216853 has 2 divisors, whose sum is σ = 25216854. Its totient is φ = 25216852.

The previous prime is 25216847. The next prime is 25216859. The reversal of 25216853 is 35861252.

It is a balanced prime because it is at equal distance from previous prime (25216847) and next prime (25216859).

It can be written as a sum of positive squares in only one way, i.e., 22972849 + 2244004 = 4793^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 25216853 - 2¹⁶ = 25151317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1578614 and since 25216853 and 1578614 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25216859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608426 + 12608427.

It is an arithmetic number, because the mean of its divisors is an integer number (12608427).

Almost surely, 2^25216853 is an apocalyptic number.

It is an amenable number.

25216853 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216853 is an equidigital number, since it uses as much as digits as its factorization.

25216853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 25216853 is about 5021.6384776286. The cubic root of 25216853 is about 293.2447837345.

The spelling of 25216853 in words is "twenty-five million, two hundred sixteen thousand, eight hundred fifty-three".