25280767 has 2 divisors, whose sum is σ = 25280768. Its totient is φ = 25280766.

The previous prime is 25280753. The next prime is 25280789. The reversal of 25280767 is 76708252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25280767 - 2⁷ = 25280639 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25280797) 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, 12640383 + 12640384.

It is an arithmetic number, because the mean of its divisors is an integer number (12640384).

Almost surely, 2^25280767 is an apocalyptic number.

25280767 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280767 is an equidigital number, since it uses as much as digits as its factorization.

25280767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 25280767 is about 5027.9983094667. The cubic root of 25280767 is about 293.4923249940.

The spelling of 25280767 in words is "twenty-five million, two hundred eighty thousand, seven hundred sixty-seven".