25319473 has 2 divisors, whose sum is σ = 25319474. Its totient is φ = 25319472.

The previous prime is 25319449. The next prime is 25319513. The reversal of 25319473 is 37491352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24285184 + 1034289 = 4928^2 + 1017^2 .

It is a cyclic number.

It is not a de Polignac number, because 25319473 - 2¹³ = 25311281 is a prime.

It is not a weakly prime, because it can be changed into another prime (25319773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12659736 + 12659737.

It is an arithmetic number, because the mean of its divisors is an integer number (12659737).

Almost surely, 2^25319473 is an apocalyptic number.

It is an amenable number.

25319473 is a deficient number, since it is larger than the sum of its proper divisors (1).

25319473 is an equidigital number, since it uses as much as digits as its factorization.

25319473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 34.

The square root of 25319473 is about 5031.8458839674. The cubic root of 25319473 is about 293.6420319674.

The spelling of 25319473 in words is "twenty-five million, three hundred nineteen thousand, four hundred seventy-three".