25030661 has 2 divisors, whose sum is σ = 25030662. Its totient is φ = 25030660.

The previous prime is 25030639. The next prime is 25030673. The reversal of 25030661 is 16603052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15358561 + 9672100 = 3919^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 25030661 - 2¹⁴ = 25014277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25030261) 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, 12515330 + 12515331.

It is an arithmetic number, because the mean of its divisors is an integer number (12515331).

Almost surely, 2^25030661 is an apocalyptic number.

It is an amenable number.

25030661 is a deficient number, since it is larger than the sum of its proper divisors (1).

25030661 is an equidigital number, since it uses as much as digits as its factorization.

25030661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 25030661 is about 5003.0651604791. The cubic root of 25030661 is about 292.5212627298.

The spelling of 25030661 in words is "twenty-five million, thirty thousand, six hundred sixty-one".