53143384 has 16 divisors (see below), whose sum is σ = 113878800. Its totient is φ = 22775712.

The previous prime is 53143367. The next prime is 53143403. The reversal of 53143384 is 48334135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474439 + ... + 474550.

It is an arithmetic number, because the mean of its divisors is an integer number (7117425).

Almost surely, 2^53143384 is an apocalyptic number.

It is an amenable number.

53143384 is an abundant number, since it is smaller than the sum of its proper divisors (60735416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53143384 is a wasteful number, since it uses less digits than its factorization.

53143384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949002 (or 948998 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 53143384 is about 7289.9508914670. The cubic root of 53143384 is about 375.9670070643.

Subtracting from 53143384 its reverse (48334135), we obtain a square (4809249 = 2193²).

The spelling of 53143384 in words is "fifty-three million, one hundred forty-three thousand, three hundred eighty-four".