25086493 has 2 divisors, whose sum is σ = 25086494. Its totient is φ = 25086492.

The previous prime is 25086487. The next prime is 25086497. The reversal of 25086493 is 39468052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19123129 + 5963364 = 4373^2 + 2442^2 .

It is a cyclic number.

It is not a de Polignac number, because 25086493 - 2⁵ = 25086461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25086497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12543246 + 12543247.

It is an arithmetic number, because the mean of its divisors is an integer number (12543247).

Almost surely, 2^25086493 is an apocalyptic number.

It is an amenable number.

25086493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25086493 is an equidigital number, since it uses as much as digits as its factorization.

25086493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 25086493 is about 5008.6418318742. The cubic root of 25086493 is about 292.7385951053.

The spelling of 25086493 in words is "twenty-five million, eighty-six thousand, four hundred ninety-three".