25827803 has 2 divisors, whose sum is σ = 25827804. Its totient is φ = 25827802.

The previous prime is 25827797. The next prime is 25827847. The reversal of 25827803 is 30872852.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25827803 - 2⁴ = 25827787 is a prime.

It is not a weakly prime, because it can be changed into another prime (25827853) 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, 12913901 + 12913902.

It is an arithmetic number, because the mean of its divisors is an integer number (12913902).

Almost surely, 2^25827803 is an apocalyptic number.

25827803 is the 2717-th centered heptagonal number.

25827803 is a deficient number, since it is larger than the sum of its proper divisors (1).

25827803 is an equidigital number, since it uses as much as digits as its factorization.

25827803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 25827803 is about 5082.1061578838. The cubic root of 25827803 is about 295.5941410785.

The spelling of 25827803 in words is "twenty-five million, eight hundred twenty-seven thousand, eight hundred three".