25623853 has 2 divisors, whose sum is σ = 25623854. Its totient is φ = 25623852.

The previous prime is 25623833. The next prime is 25623859. The reversal of 25623853 is 35832652.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 9 = 5062^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 25623853 - 2⁵ = 25623821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25623859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12811926 + 12811927.

It is an arithmetic number, because the mean of its divisors is an integer number (12811927).

Almost surely, 2^25623853 is an apocalyptic number.

It is an amenable number.

25623853 is a deficient number, since it is larger than the sum of its proper divisors (1).

25623853 is an equidigital number, since it uses as much as digits as its factorization.

25623853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 25623853 is about 5062.0008889766. Note that the first 3 decimals coincide. The cubic root of 25623853 is about 294.8140281461.

The spelling of 25623853 in words is "twenty-five million, six hundred twenty-three thousand, eight hundred fifty-three".