52722143 has 4 divisors (see below), whose sum is σ = 52815048. Its totient is φ = 52629240.

The previous prime is 52722097. The next prime is 52722167. The reversal of 52722143 is 34122725.

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 52722143 - 2⁶ = 52722079 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 (52722193) 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, 45596 + ... + 46737.

It is an arithmetic number, because the mean of its divisors is an integer number (13203762).

Almost surely, 2^52722143 is an apocalyptic number.

52722143 is a deficient number, since it is larger than the sum of its proper divisors (92905).

52722143 is an equidigital number, since it uses as much as digits as its factorization.

52722143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92904.

The product of its digits is 3360, while the sum is 26.

The square root of 52722143 is about 7261.0015149427. The cubic root of 52722143 is about 374.9710033875.

Adding to 52722143 its reverse (34122725), we get a palindrome (86844868).

The spelling of 52722143 in words is "fifty-two million, seven hundred twenty-two thousand, one hundred forty-three".