52240211 has 4 divisors (see below), whose sum is σ = 52260312. Its totient is φ = 52220112.

The previous prime is 52240183. The next prime is 52240229. The reversal of 52240211 is 11204225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52240211 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 52240211.

It is not an unprimeable number, because it can be changed into a prime (52240511) 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, 5450 + ... + 11583.

It is an arithmetic number, because the mean of its divisors is an integer number (13065078).

Almost surely, 2^52240211 is an apocalyptic number.

52240211 is a deficient number, since it is larger than the sum of its proper divisors (20101).

52240211 is a wasteful number, since it uses less digits than its factorization.

52240211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20100.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 52240211 is about 7227.7389963944. The cubic root of 52240211 is about 373.8249702890.

Adding to 52240211 its reverse (11204225), we get a palindrome (63444436).

The spelling of 52240211 in words is "fifty-two million, two hundred forty thousand, two hundred eleven".