26550791 has 2 divisors, whose sum is σ = 26550792. Its totient is φ = 26550790.

The previous prime is 26550731. The next prime is 26550841. The reversal of 26550791 is 19705562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26550791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26550701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13275395 + 13275396.

It is an arithmetic number, because the mean of its divisors is an integer number (13275396).

Almost surely, 2^26550791 is an apocalyptic number.

26550791 is a deficient number, since it is larger than the sum of its proper divisors (1).

26550791 is an equidigital number, since it uses as much as digits as its factorization.

26550791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 26550791 is about 5152.7459669578. The cubic root of 26550791 is about 298.3269499864.

The spelling of 26550791 in words is "twenty-six million, five hundred fifty thousand, seven hundred ninety-one".