52097213 has 4 divisors (see below), whose sum is σ = 59539680. Its totient is φ = 44654748.

The previous prime is 52097207. The next prime is 52097239. The reversal of 52097213 is 31279025.

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 52097213 - 2¹⁰ = 52096189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52097263) 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, 3721223 + ... + 3721236.

It is an arithmetic number, because the mean of its divisors is an integer number (14884920).

Almost surely, 2^52097213 is an apocalyptic number.

It is an amenable number.

52097213 is a deficient number, since it is larger than the sum of its proper divisors (7442467).

52097213 is an equidigital number, since it uses as much as digits as its factorization.

52097213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442466.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 52097213 is about 7217.8399123283. The cubic root of 52097213 is about 373.4835661489.

The spelling of 52097213 in words is "fifty-two million, ninety-seven thousand, two hundred thirteen".