53143346 has 4 divisors (see below), whose sum is σ = 79715022. Its totient is φ = 26571672.

The previous prime is 53143333. The next prime is 53143367. The reversal of 53143346 is 64334135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64334135 = 5 ⋅12866827.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 18156121 = 5915^2 + 4261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285835 + ... + 13285838.

Almost surely, 2^53143346 is an apocalyptic number.

53143346 is a deficient number, since it is larger than the sum of its proper divisors (26571676).

53143346 is a wasteful number, since it uses less digits than its factorization.

53143346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26571675.

The product of its digits is 12960, while the sum is 29.

The square root of 53143346 is about 7289.9482851389. The cubic root of 53143346 is about 375.9669174530.

The spelling of 53143346 in words is "fifty-three million, one hundred forty-three thousand, three hundred forty-six".