52748213 has 4 divisors (see below), whose sum is σ = 60283680. Its totient is φ = 45212748.

The previous prime is 52748207. The next prime is 52748233. The reversal of 52748213 is 31284725.

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 not a de Polignac number, because 52748213 - 2⁶ = 52748149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52748213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52748233) 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, 3767723 + ... + 3767736.

It is an arithmetic number, because the mean of its divisors is an integer number (15070920).

Almost surely, 2^52748213 is an apocalyptic number.

It is an amenable number.

52748213 is a deficient number, since it is larger than the sum of its proper divisors (7535467).

52748213 is an equidigital number, since it uses as much as digits as its factorization.

52748213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535466.

The product of its digits is 13440, while the sum is 32.

The square root of 52748213 is about 7262.7964999716. The cubic root of 52748213 is about 375.0327983165.

The spelling of 52748213 in words is "fifty-two million, seven hundred forty-eight thousand, two hundred thirteen".