26204065 has 12 divisors (see below), whose sum is σ = 31829436. Its totient is φ = 20709888.

The previous prime is 26204053. The next prime is 26204069. The reversal of 26204065 is 56040262.

26204065 = 471² + 472² + ... + 567².

It can be written as a sum of positive squares in 6 ways, for example, as 3326976 + 22877089 = 1824^2 + 4783^2 .

It is not a de Polignac number, because 26204065 - 2⁵ = 26204033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26204069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46767 + ... + 47323.

It is an arithmetic number, because the mean of its divisors is an integer number (2652453).

Almost surely, 2^26204065 is an apocalyptic number.

It is an amenable number.

26204065 is a deficient number, since it is larger than the sum of its proper divisors (5625371).

26204065 is an frugal number, since it uses more digits than its factorization.

26204065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26204065 is about 5118.9906231600. The cubic root of 26204065 is about 297.0226414660.

The spelling of 26204065 in words is "twenty-six million, two hundred four thousand, sixty-five".