26520842 has 4 divisors (see below), whose sum is σ = 39781266. Its totient is φ = 13260420.

The previous prime is 26520797. The next prime is 26520847. The reversal of 26520842 is 24802562.

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., 15358561 + 11162281 = 3919^2 + 3341^2 .

It is not an unprimeable number, because it can be changed into a prime (26520847) 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 as a sum of consecutive naturals, namely, 6630209 + ... + 6630212.

Almost surely, 2^26520842 is an apocalyptic number.

26520842 is a deficient number, since it is larger than the sum of its proper divisors (13260424).

26520842 is a wasteful number, since it uses less digits than its factorization.

26520842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13260423.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 26520842 is about 5149.8390266104. The cubic root of 26520842 is about 298.2147379458.

The spelling of 26520842 in words is "twenty-six million, five hundred twenty thousand, eight hundred forty-two".