25280803 has 2 divisors, whose sum is σ = 25280804. Its totient is φ = 25280802.

The previous prime is 25280797. The next prime is 25280807. The reversal of 25280803 is 30808252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25280803 is a prime.

It is not a weakly prime, because it can be changed into another prime (25280807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12640401 + 12640402.

It is an arithmetic number, because the mean of its divisors is an integer number (12640402).

Almost surely, 2^25280803 is an apocalyptic number.

25280803 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280803 is an equidigital number, since it uses as much as digits as its factorization.

25280803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 25280803 is about 5028.0018894189. The cubic root of 25280803 is about 293.4924643056.

The spelling of 25280803 in words is "twenty-five million, two hundred eighty thousand, eight hundred three".