25629893 has 2 divisors, whose sum is σ = 25629894. Its totient is φ = 25629892.

The previous prime is 25629887. The next prime is 25629907. The reversal of 25629893 is 39892652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25573249 + 56644 = 5057^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 25629893 - 2²⁰ = 24581317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25629193) 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, 12814946 + 12814947.

It is an arithmetic number, because the mean of its divisors is an integer number (12814947).

Almost surely, 2^25629893 is an apocalyptic number.

It is an amenable number.

25629893 is a deficient number, since it is larger than the sum of its proper divisors (1).

25629893 is an equidigital number, since it uses as much as digits as its factorization.

25629893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 25629893 is about 5062.5974558521. The cubic root of 25629893 is about 294.8371906376.

The spelling of 25629893 in words is "twenty-five million, six hundred twenty-nine thousand, eight hundred ninety-three".