26155049 has 4 divisors (see below), whose sum is σ = 26202564. Its totient is φ = 26107536.

The previous prime is 26155037. The next prime is 26155069. The reversal of 26155049 is 94055162.

It is a happy number.

26155049 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4439449 + 21715600 = 2107^2 + 4660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26155049 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (26155009) 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 3 ways as a sum of consecutive naturals, for example, 22922 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (6550641).

Almost surely, 2^26155049 is an apocalyptic number.

It is an amenable number.

26155049 is a deficient number, since it is larger than the sum of its proper divisors (47515).

26155049 is an equidigital number, since it uses as much as digits as its factorization.

26155049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47514.

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

The square root of 26155049 is about 5114.2007195651. The cubic root of 26155049 is about 296.8373273563.

The spelling of 26155049 in words is "twenty-six million, one hundred fifty-five thousand, forty-nine".