53433443 has 4 divisors (see below), whose sum is σ = 61066800. Its totient is φ = 45800088.

The previous prime is 53433437. The next prime is 53433449. The reversal of 53433443 is 34433435.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (53433437) and next prime (53433449).

It is a cyclic number.

It is not a de Polignac number, because 53433443 - 2⁴ = 53433427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53433449) 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, 3816668 + ... + 3816681.

It is an arithmetic number, because the mean of its divisors is an integer number (15266700).

Almost surely, 2^53433443 is an apocalyptic number.

53433443 is a deficient number, since it is larger than the sum of its proper divisors (7633357).

53433443 is an equidigital number, since it uses as much as digits as its factorization.

53433443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633356.

The product of its digits is 25920, while the sum is 29.

The square root of 53433443 is about 7309.8182603947. The cubic root of 53433443 is about 376.6497813543.

Adding to 53433443 its reverse (34433435), we get a palindrome (87866878).

The spelling of 53433443 in words is "fifty-three million, four hundred thirty-three thousand, four hundred forty-three".