52021343 has 16 divisors (see below), whose sum is σ = 60362496. Its totient is φ = 44307840.

The previous prime is 52021313. The next prime is 52021369. The reversal of 52021343 is 34312025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52021343 - 2¹² = 52017247 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 (52021313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52430 + ... + 53412.

It is an arithmetic number, because the mean of its divisors is an integer number (3772656).

Almost surely, 2^52021343 is an apocalyptic number.

52021343 is a deficient number, since it is larger than the sum of its proper divisors (8341153).

52021343 is a wasteful number, since it uses less digits than its factorization.

52021343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52021343 is about 7212.5822698947. The cubic root of 52021343 is about 373.3021747132.

Adding to 52021343 its reverse (34312025), we get a palindrome (86333368).

The spelling of 52021343 in words is "fifty-two million, twenty-one thousand, three hundred forty-three".