53206143 has 8 divisors (see below), whose sum is σ = 71073408. Its totient is φ = 35404824.

The previous prime is 53206133. The next prime is 53206157. The reversal of 53206143 is 34160235.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53206143 - 2⁶ = 53206079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53206103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14571 + ... + 17852.

It is an arithmetic number, because the mean of its divisors is an integer number (8884176).

Almost surely, 2^53206143 is an apocalyptic number.

53206143 is a deficient number, since it is larger than the sum of its proper divisors (17867265).

53206143 is a wasteful number, since it uses less digits than its factorization.

53206143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32973.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53206143 is about 7294.2541085432. The cubic root of 53206143 is about 376.1149466541.

Adding to 53206143 its reverse (34160235), we get a palindrome (87366378).

The spelling of 53206143 in words is "fifty-three million, two hundred six thousand, one hundred forty-three".