25458379 has 2 divisors, whose sum is σ = 25458380. Its totient is φ = 25458378.

The previous prime is 25458359. The next prime is 25458413. The reversal of 25458379 is 97385452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25458379 - 2⁹ = 25457867 is a prime.

It is a super-2 number, since 2×25458379² = 1296258122615282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25458359) 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, 12729189 + 12729190.

It is an arithmetic number, because the mean of its divisors is an integer number (12729190).

Almost surely, 2^25458379 is an apocalyptic number.

25458379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25458379 is an equidigital number, since it uses as much as digits as its factorization.

25458379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 25458379 is about 5045.6296931107. The cubic root of 25458379 is about 294.1780393844.

The spelling of 25458379 in words is "twenty-five million, four hundred fifty-eight thousand, three hundred seventy-nine".