53143522 has 4 divisors (see below), whose sum is σ = 79715286. Its totient is φ = 26571760.

The previous prime is 53143499. The next prime is 53143543. The reversal of 53143522 is 22534135.

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

It can be written as a sum of positive squares in only one way, i.e., 48986001 + 4157521 = 6999^2 + 2039^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285879 + ... + 13285882.

Almost surely, 2^53143522 is an apocalyptic number.

53143522 is a deficient number, since it is larger than the sum of its proper divisors (26571764).

53143522 is a wasteful number, since it uses less digits than its factorization.

53143522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571763.

The product of its digits is 3600, while the sum is 25.

The square root of 53143522 is about 7289.9603565452. The cubic root of 53143522 is about 375.9673324946.

Adding to 53143522 its reverse (22534135), we get a palindrome (75677657).

It can be divided in two parts, 5314 and 3522, that added together give a square (8836 = 94²).

The spelling of 53143522 in words is "fifty-three million, one hundred forty-three thousand, five hundred twenty-two".