25086839 has 2 divisors, whose sum is σ = 25086840. Its totient is φ = 25086838.

The previous prime is 25086829. The next prime is 25086857. The reversal of 25086839 is 93868052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25086839 - 2⁴ = 25086823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25086796 and 25086805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25086829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12543419 + 12543420.

It is an arithmetic number, because the mean of its divisors is an integer number (12543420).

Almost surely, 2^25086839 is an apocalyptic number.

25086839 is a deficient number, since it is larger than the sum of its proper divisors (1).

25086839 is an equidigital number, since it uses as much as digits as its factorization.

25086839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 25086839 is about 5008.6763720568. The cubic root of 25086839 is about 292.7399409436.

The spelling of 25086839 in words is "twenty-five million, eighty-six thousand, eight hundred thirty-nine".