26530213 has 4 divisors (see below), whose sum is σ = 27926560. Its totient is φ = 25133868.

The previous prime is 26530211. The next prime is 26530219. The reversal of 26530213 is 31203562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26530213 - 2¹ = 26530211 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 (26530211) 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, 698145 + ... + 698182.

It is an arithmetic number, because the mean of its divisors is an integer number (6981640).

Almost surely, 2^26530213 is an apocalyptic number.

It is an amenable number.

26530213 is a deficient number, since it is larger than the sum of its proper divisors (1396347).

26530213 is a wasteful number, since it uses less digits than its factorization.

26530213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396346.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 26530213 is about 5150.7487805173. The cubic root of 26530213 is about 298.2498580126.

Adding to 26530213 its reverse (31203562), we get a palindrome (57733775).

The spelling of 26530213 in words is "twenty-six million, five hundred thirty thousand, two hundred thirteen".