26550149 has 4 divisors (see below), whose sum is σ = 26569536. Its totient is φ = 26530764.

The previous prime is 26550143. The next prime is 26550187. The reversal of 26550149 is 94105562.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26550149 - 2⁴ = 26550133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26550143) 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 in 3 ways as a sum of consecutive naturals, for example, 7469 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (6642384).

Almost surely, 2^26550149 is an apocalyptic number.

It is an amenable number.

26550149 is a deficient number, since it is larger than the sum of its proper divisors (19387).

26550149 is a wasteful number, since it uses less digits than its factorization.

26550149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19386.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 26550149 is about 5152.6836697007. The cubic root of 26550149 is about 298.3245454447.

The spelling of 26550149 in words is "twenty-six million, five hundred fifty thousand, one hundred forty-nine".