26505442 has 4 divisors (see below), whose sum is σ = 39758166. Its totient is φ = 13252720.

The previous prime is 26505433. The next prime is 26505463. The reversal of 26505442 is 24450562.

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

It can be written as a sum of positive squares in only one way, i.e., 18671041 + 7834401 = 4321^2 + 2799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26505442.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6626359 + ... + 6626362.

Almost surely, 2^26505442 is an apocalyptic number.

26505442 is a deficient number, since it is larger than the sum of its proper divisors (13252724).

26505442 is a wasteful number, since it uses less digits than its factorization.

26505442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13252723.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 26505442 is about 5148.3436171258. The cubic root of 26505442 is about 298.1570047842.

The spelling of 26505442 in words is "twenty-six million, five hundred five thousand, four hundred forty-two".