25673929 has 2 divisors, whose sum is σ = 25673930. Its totient is φ = 25673928.

The previous prime is 25673917. The next prime is 25673933. The reversal of 25673929 is 92937652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18939904 + 6734025 = 4352^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 25673929 - 2¹¹ = 25671881 is a prime.

It is not a weakly prime, because it can be changed into another prime (25673429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836964 + 12836965.

It is an arithmetic number, because the mean of its divisors is an integer number (12836965).

Almost surely, 2^25673929 is an apocalyptic number.

It is an amenable number.

25673929 is a deficient number, since it is larger than the sum of its proper divisors (1).

25673929 is an equidigital number, since it uses as much as digits as its factorization.

25673929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 25673929 is about 5066.9447401763. The cubic root of 25673929 is about 295.0059521925.

The spelling of 25673929 in words is "twenty-five million, six hundred seventy-three thousand, nine hundred twenty-nine".