26565061 has 4 divisors (see below), whose sum is σ = 26743500. Its totient is φ = 26386624.

The previous prime is 26565053. The next prime is 26565079. The reversal of 26565061 is 16056562.

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 1012036 + 25553025 = 1006^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 26565061 - 2³ = 26565053 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 (26565761) 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, 88996 + ... + 89293.

It is an arithmetic number, because the mean of its divisors is an integer number (6685875).

Almost surely, 2^26565061 is an apocalyptic number.

It is an amenable number.

26565061 is a deficient number, since it is larger than the sum of its proper divisors (178439).

26565061 is a wasteful number, since it uses less digits than its factorization.

26565061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178438.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 26565061 is about 5154.1304795280. The cubic root of 26565061 is about 298.3803867261.

The spelling of 26565061 in words is "twenty-six million, five hundred sixty-five thousand, sixty-one".