25229641 has 2 divisors, whose sum is σ = 25229642. Its totient is φ = 25229640.

The previous prime is 25229609. The next prime is 25229653. The reversal of 25229641 is 14692252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25200400 + 29241 = 5020^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 25229641 - 2⁵ = 25229609 is a prime.

It is not a weakly prime, because it can be changed into another prime (25229341) 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, 12614820 + 12614821.

It is an arithmetic number, because the mean of its divisors is an integer number (12614821).

Almost surely, 2^25229641 is an apocalyptic number.

It is an amenable number.

25229641 is a deficient number, since it is larger than the sum of its proper divisors (1).

25229641 is an equidigital number, since it uses as much as digits as its factorization.

25229641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 25229641 is about 5022.9116058318. The cubic root of 25229641 is about 293.2943455701.

The spelling of 25229641 in words is "twenty-five million, two hundred twenty-nine thousand, six hundred forty-one".