526240213 has 4 divisors (see below), whose sum is σ = 529391520. Its totient is φ = 523088908.

The previous prime is 526240201. The next prime is 526240241. The reversal of 526240213 is 312042625.

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 526240213 - 2⁵ = 526240181 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 (526240243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575403 + ... + 1575736.

It is an arithmetic number, because the mean of its divisors is an integer number (132347880).

Almost surely, 2^526240213 is an apocalyptic number.

It is an amenable number.

526240213 is a deficient number, since it is larger than the sum of its proper divisors (3151307).

526240213 is a wasteful number, since it uses less digits than its factorization.

526240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151306.

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

The square root of 526240213 is about 22939.9261768647. The cubic root of 526240213 is about 807.3490600246.

Adding to 526240213 its reverse (312042625), we get a palindrome (838282838).

The spelling of 526240213 in words is "five hundred twenty-six million, two hundred forty thousand, two hundred thirteen".