26398051 has 2 divisors, whose sum is σ = 26398052. Its totient is φ = 26398050.

The previous prime is 26398027. The next prime is 26398063. The reversal of 26398051 is 15089362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26398051 - 2¹⁷ = 26266979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26397998 and 26398016.

It is not a weakly prime, because it can be changed into another prime (26398651) 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, 13199025 + 13199026.

It is an arithmetic number, because the mean of its divisors is an integer number (13199026).

Almost surely, 2^26398051 is an apocalyptic number.

26398051 is a deficient number, since it is larger than the sum of its proper divisors (1).

26398051 is an equidigital number, since it uses as much as digits as its factorization.

26398051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 26398051 is about 5137.9033661602. The cubic root of 26398051 is about 297.7537829306.

The spelling of 26398051 in words is "twenty-six million, three hundred ninety-eight thousand, fifty-one".