25828459 has 2 divisors, whose sum is σ = 25828460. Its totient is φ = 25828458.

The previous prime is 25828421. The next prime is 25828463. The reversal of 25828459 is 95482852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25828459 - 2¹⁵ = 25795691 is a prime.

It is not a weakly prime, because it can be changed into another prime (25828499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12914229 + 12914230.

It is an arithmetic number, because the mean of its divisors is an integer number (12914230).

Almost surely, 2^25828459 is an apocalyptic number.

25828459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25828459 is an equidigital number, since it uses as much as digits as its factorization.

25828459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 43.

The square root of 25828459 is about 5082.1706976449. The cubic root of 25828459 is about 295.5966436544.

The spelling of 25828459 in words is "twenty-five million, eight hundred twenty-eight thousand, four hundred fifty-nine".