52143446 has 4 divisors (see below), whose sum is σ = 78215172. Its totient is φ = 26071722.

The previous prime is 52143401. The next prime is 52143449. The reversal of 52143446 is 64434125.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52143449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13035860 + ... + 13035863.

It is an arithmetic number, because the mean of its divisors is an integer number (19553793).

Almost surely, 2^52143446 is an apocalyptic number.

52143446 is a deficient number, since it is larger than the sum of its proper divisors (26071726).

52143446 is a wasteful number, since it uses less digits than its factorization.

52143446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26071725.

The product of its digits is 11520, while the sum is 29.

The square root of 52143446 is about 7221.0418915832. The cubic root of 52143446 is about 373.5940145419.

The spelling of 52143446 in words is "fifty-two million, one hundred forty-three thousand, four hundred forty-six".