26504413 has 4 divisors (see below), whose sum is σ = 28543228. Its totient is φ = 24465600.

The previous prime is 26504407. The next prime is 26504417. The reversal of 26504413 is 31440562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31440562 = 2 ⋅15720281.

It can be written as a sum of positive squares in 2 ways, for example, as 16499844 + 10004569 = 4062^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 26504413 - 2¹³ = 26496221 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 (26504417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019388 + ... + 1019413.

It is an arithmetic number, because the mean of its divisors is an integer number (7135807).

Almost surely, 2^26504413 is an apocalyptic number.

It is an amenable number.

26504413 is a deficient number, since it is larger than the sum of its proper divisors (2038815).

26504413 is a wasteful number, since it uses less digits than its factorization.

26504413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038814.

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

The square root of 26504413 is about 5148.2436811014. The cubic root of 26504413 is about 298.1531463624.

Adding to 26504413 its reverse (31440562), we get a palindrome (57944975).

The spelling of 26504413 in words is "twenty-six million, five hundred four thousand, four hundred thirteen".