25810093 has 2 divisors, whose sum is σ = 25810094. Its totient is φ = 25810092.

The previous prime is 25810091. The next prime is 25810121. The reversal of 25810093 is 39001852.

It is an a-pointer prime, because the next prime (25810121) can be obtained adding 25810093 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14607684 + 11202409 = 3822^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 25810093 - 2¹ = 25810091 is a prime.

Together with 25810091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25810091) 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, 12905046 + 12905047.

It is an arithmetic number, because the mean of its divisors is an integer number (12905047).

Almost surely, 2^25810093 is an apocalyptic number.

It is an amenable number.

25810093 is a deficient number, since it is larger than the sum of its proper divisors (1).

25810093 is an equidigital number, since it uses as much as digits as its factorization.

25810093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 25810093 is about 5080.3634712489. The cubic root of 25810093 is about 295.5265631377.

The spelling of 25810093 in words is "twenty-five million, eight hundred ten thousand, ninety-three".