53143222 has 16 divisors (see below), whose sum is σ = 87735312. Its totient is φ = 23941120.

The previous prime is 53143219. The next prime is 53143243. The reversal of 53143222 is 22234135.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 53143193 and 53143202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8203 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (5483457).

Almost surely, 2^53143222 is an apocalyptic number.

53143222 is a deficient number, since it is larger than the sum of its proper divisors (34592090).

53143222 is a wasteful number, since it uses less digits than its factorization.

53143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21503.

The product of its digits is 1440, while the sum is 22.

The square root of 53143222 is about 7289.9397802725. The cubic root of 53143222 is about 375.9666250367.

Adding to 53143222 its reverse (22234135), we get a palindrome (75377357).

The spelling of 53143222 in words is "fifty-three million, one hundred forty-three thousand, two hundred twenty-two".