25554653 has 2 divisors, whose sum is σ = 25554654. Its totient is φ = 25554652.

The previous prime is 25554649. The next prime is 25554667. The reversal of 25554653 is 35645552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22534009 + 3020644 = 4747^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 25554653 - 2² = 25554649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25554623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777326 + 12777327.

It is an arithmetic number, because the mean of its divisors is an integer number (12777327).

Almost surely, 2^25554653 is an apocalyptic number.

It is an amenable number.

25554653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25554653 is an equidigital number, since it uses as much as digits as its factorization.

25554653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90000, while the sum is 35.

The square root of 25554653 is about 5055.1610261197. The cubic root of 25554653 is about 294.5483964381.

The spelling of 25554653 in words is "twenty-five million, five hundred fifty-four thousand, six hundred fifty-three".