26550947 has 12 divisors (see below), whose sum is σ = 28223760. Its totient is φ = 24929520.

The previous prime is 26550943. The next prime is 26550959. The reversal of 26550947 is 74905562.

It is a happy number.

It is not a de Polignac number, because 26550947 - 2² = 26550943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26550947.

It is not an unprimeable number, because it can be changed into a prime (26550943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115829 + ... + 116057.

It is an arithmetic number, because the mean of its divisors is an integer number (2351980).

Almost surely, 2^26550947 is an apocalyptic number.

26550947 is a deficient number, since it is larger than the sum of its proper divisors (1672813).

26550947 is an equidigital number, since it uses as much as digits as its factorization.

26550947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 26550947 is about 5152.7611044953. The cubic root of 26550947 is about 298.3275342616.

The spelling of 26550947 in words is "twenty-six million, five hundred fifty thousand, nine hundred forty-seven".