28025951 has 2 divisors, whose sum is σ = 28025952. Its totient is φ = 28025950.

The previous prime is 28025947. The next prime is 28025989. The reversal of 28025951 is 15952082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28025951 - 2² = 28025947 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28025051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14012975 + 14012976.

It is an arithmetic number, because the mean of its divisors is an integer number (14012976).

Almost surely, 2^28025951 is an apocalyptic number.

28025951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28025951 is an equidigital number, since it uses as much as digits as its factorization.

28025951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 28025951 is about 5293.9541932283. The cubic root of 28025951 is about 303.7526807443.

The spelling of 28025951 in words is "twenty-eight million, twenty-five thousand, nine hundred fifty-one".