26051287 has 2 divisors, whose sum is σ = 26051288. Its totient is φ = 26051286.

The previous prime is 26051281. The next prime is 26051297. The reversal of 26051287 is 78215062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26051287 - 2⁷ = 26051159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26051281) 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, 13025643 + 13025644.

It is an arithmetic number, because the mean of its divisors is an integer number (13025644).

Almost surely, 2^26051287 is an apocalyptic number.

26051287 is a deficient number, since it is larger than the sum of its proper divisors (1).

26051287 is an equidigital number, since it uses as much as digits as its factorization.

26051287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 26051287 is about 5104.0461400736. The cubic root of 26051287 is about 296.4442706130. Note that the first 3 decimals are identical.

The spelling of 26051287 in words is "twenty-six million, fifty-one thousand, two hundred eighty-seven".