52205143 has 4 divisors (see below), whose sum is σ = 52277680. Its totient is φ = 52132608.

The previous prime is 52205137. The next prime is 52205161. The reversal of 52205143 is 34150225.

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

It is a cyclic number.

It is not a de Polignac number, because 52205143 - 2⁹ = 52204631 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 (52205123) 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, 35178 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (13069420).

Almost surely, 2^52205143 is an apocalyptic number.

52205143 is a deficient number, since it is larger than the sum of its proper divisors (72537).

52205143 is an equidigital number, since it uses as much as digits as its factorization.

52205143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72536.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52205143 is about 7225.3126575948. The cubic root of 52205143 is about 373.7413040336.

Adding to 52205143 its reverse (34150225), we get a palindrome (86355368).

The spelling of 52205143 in words is "fifty-two million, two hundred five thousand, one hundred forty-three".