53343145 has 4 divisors (see below), whose sum is σ = 64011780. Its totient is φ = 42674512.

The previous prime is 53343131. The next prime is 53343149. The reversal of 53343145 is 54134335.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34999056 + 18344089 = 5916^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 53343145 - 2¹¹ = 53341097 is a prime.

It is a super-2 number, since 2×53343145² = 5690982236982050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53343149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5334310 + ... + 5334319.

It is an arithmetic number, because the mean of its divisors is an integer number (16002945).

Almost surely, 2^53343145 is an apocalyptic number.

It is an amenable number.

53343145 is a deficient number, since it is larger than the sum of its proper divisors (10668635).

53343145 is a wasteful number, since it uses less digits than its factorization.

53343145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668634.

The product of its digits is 10800, while the sum is 28.

The square root of 53343145 is about 7303.6391614044. The cubic root of 53343145 is about 376.4374929666.

The spelling of 53343145 in words is "fifty-three million, three hundred forty-three thousand, one hundred forty-five".