25312073 has 2 divisors, whose sum is σ = 25312074. Its totient is φ = 25312072.

The previous prime is 25312051. The next prime is 25312097. The reversal of 25312073 is 37021352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21501769 + 3810304 = 4637^2 + 1952^2 .

It is a cyclic number.

It is not a de Polignac number, because 25312073 - 2⁸ = 25311817 is a prime.

It is not a weakly prime, because it can be changed into another prime (25317073) 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, 12656036 + 12656037.

It is an arithmetic number, because the mean of its divisors is an integer number (12656037).

Almost surely, 2^25312073 is an apocalyptic number.

It is an amenable number.

25312073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25312073 is an equidigital number, since it uses as much as digits as its factorization.

25312073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 25312073 is about 5031.1105135944. The cubic root of 25312073 is about 293.6134220675.

The spelling of 25312073 in words is "twenty-five million, three hundred twelve thousand, seventy-three".